Even the most "licked" and the most secure operating system is not guaranteed from the failures perceived by the user as errors. Unknown, unknown and unexpectedly emerging mistakes are sometimes fraught with extremely unpleasant consequences.

It is easy to imagine the emotions of a person working on a complex document that is lost as a result of a Windows system failure. To avoid similar problems - it is better to get ready to them in advance. And for this you need to be aware of how Windows WINTOVS 7 is checked for errors. Consider individually two serious issues related to the stated topic:

• Check system files and Windows registry.
• Control status hard computer disk.

Old-timers of the computer world well remember the utility of the famous Peter Norton's entire world - not just the author of excellent books, but also the creator of programs under the brand name "Norton Utilities". The first versions of these programs worked even before Windows appeared - in a popular MS DOS operating system at the time. These utilities allowed to detect the presence of errors on the hard drive and identify the presence of other DOS problems. We will also be interested in similar tools for Windows.

Files and registry

Checking OS files You can double: either using standard Windows tools, or using third-party software. OS has built-in file control tools. To use their capabilities to open the command prompt window and type the SFC command with the / scannow command, like this:

As a result, scanning system files will be scanned for detecting errors in them. The result will be released immediately in the command line window.

The information obtained can be analyzed (at least with the help of the same Internet), which is useful for determining the degree of wear and equipment. During the work program, the program will try to correct all the disrupted violations in the system files on the disk.

Additional service, Higher scan quality and adjustment is provided by third-party manufacturers.

For example, the same package "Norton Utilities" (NU) for Windows. Although this means and is the most popular and powerful software package To combat OS and Computer faults, it still costs a lot of money. Especially in its "professional" configuration. Nowadays, you can detect a lot free analog of this creation.

The Windows registry is the very place where, in addition to the necessary OS, the mass of all trash and garbage accumulates. Periodic cleaning of the registry is our direct duty. To this end, it is worth installing and periodically run the time-tested CCleaner utility (although NU also copes with this task). Look for it online and download.

HDD

The appearance of errors in the file structure on the hard disk is caused by the wear of the disk surface, disk service failures (drivers) and the positioning errors of the Laser subsystem of the hard drive. Check and cure hDD It can be in methods similar to the previous one. We will look at the easiest way - launch standard program Verification of disk errors that comes with Windows. For this:

• Open the "My Computer" label, select the icon of any of the sections (for example, " Local disk FROM").
• Open the context menu with the right mouse button.
• Select "Properties". A window opens with tabs.
• Click the "Service" tab
• Click on the "Check" button.

The program examines the section and eliminates the malfunction. The same operation is made with other sections.

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Checking disks for errors in Windows 7

One of important factors system performance is the health of such a basic component as hard drives. It is especially important that there are no problems with the drive on which the system is installed. In the opposite case, such malfunctions are possible as the inability to access individual folders or files, regular emergency exit from the system, " blue screen Death "(BSOD), up to the inability to launch a computer at all. We find out how on Windows 7 you can check the hard drive for errors.

See also: how to check SSD Disc For errors

HDD research methods

If you have developed a situation that it does not even turn into the system, then in order to check whether the hard drives are not guilty to the hard drive for its research, you should connect the disk to another computer or download the system using Live CD. It is also recommended to do if you are going to check the drive where the system is installed.

Widget methods are divided into options using exceptionally internal Windows tools (Check Disk utility) and options using third-party software. At the same time, the errors themselves can also be divided into two groups:

• logical errors (file system damage);
• physical (hardware) problems.

In the first case, many programs for researching hard drive can not only find errors, but also to make them corrected. In the second case, using the application, it will not be possible to completely eliminate the problem, but only to mark the broken sector, as unreadable, so that there is no longer recorded. Fully hardware problems with hard disk can be eliminated only by repair or replacement.

Method 1: CrystalDiskinfo

Let's start by parsing options using third-party programs. One of the most popular HDD testing methods for errors is the use of the well-known CrystalDiskInfo utility, the main purpose of which is just as to solving the task being studied.

If multiple physical HDD is connected to the computer, then to switch between them in order to obtain information, click on the "Disc" menu, and then select the desired medium from the list.

Benefits this method Using CrystalDiskInfo is the simplicity and speed of the study. But at the same time, with his help, unfortunately, it will not be possible to eliminate the problems in case of identifying them. In addition, it is necessary to recognize that the search for problems in this way is performed quite superficial.

Lesson: how to use CrystalDiskinfo

Method 2: HDDLife Pro

The next program that will help estimate the storage status used under Windows 7 is HDLIFE Pro.

To update the data, you need to click the "File" window and then select "Check the discs now!".

The main disadvantage of this method is that the full functionality of the HDLIFE Pro is paid.

Method 3: HDDScan

The next program with which you can check the HDD is the free HDDScan utility.

Download HDDDSCAN

Method 4: Checking the Check Disk utility through the properties of the drive

But check the HDD on errors, as well as correct some of them, you can and using the built-in windows utilities 7, which is called Check Disk. It can be launched different ways. One of these methods provides launch through the properties of the drive.

Method 5: "Command String"

Check Disk utility can also be launched from the "Command Line".

If the user wants not only to carry out a study, but also to carry out automatic correction of the errors found during its process, then in this case, enter such a command:

Press ENTER to activate.

If you need to check the drive for not only logical, but also physical errors (damage), as well as try to correct damaged sectors, then in this case the following plan command is applied:

When checking not all the hard drive, and a specific logical drive is required to enter its name. For example, in order to scan only D partition, you should enter such an expression to the "Command Line":

Accordingly, if you need to scan another disk, it is required to introduce its name.

The attributes "/ f" and "/ r" are the main ones when you start the CKDSK command through the "command line", but there are still a number of additional attributes:

• / x - makes off the specified drive for a more detailed check (most often used simultaneously with the "/ F" attribute);
• / v - indicates the cause of the problem (the ability to apply only in file System NTFS);
• / C - skipping scan in structural folders (this reduces the quality of the test, but increases its speed);
• / I - fast check without detail;
• / b - re-evaluation of damaged items after trying to fix them (applied solely with the "/ R" attribute);
• / Spotfix - point correction of errors (only works with NTFS);
• / Freeorphanedchains - instead of restoring the content, cleans the clusters (only works with FAT / FAT32 / EXFAT file systems);
• / L: Size - indicates the size of the log file in case of an emergency exit (without specifying the size remains the current value);
• / OfflineScanandfix - offline scan with shutdown of the specified HDD;
• / Scan - proactive scanning;
• / perf - increase the priority of scanning over other processes running in the system (applies only with the "/ Scan" attribute);
• /? - Calling the list and attribute features displayed through the "Command Line" window.

Most of the above attributes can be used not only individually, but also together. For example, entering the following command:

cHKDSK C: / F / R / I

will make it possible fast check Section C without detail with the correction of logical errors and broken sectors.

If you are trying to check with the correction of that disc on which the Windows system is located, you cannot immediately execute this procedure. This is due to the fact that this process Requires monopoly law, and the operation of the OS will prevent the implementation of this condition. In this case, the "Command line" appears the message about the impossibility of performing the operation immediately, but it is proposed to be done upon subsequent reboot operating system. If you agree with this proposal, you should click on the "Y" keyboard, which symbolizes "YES" ("Yes"). If you have changed my mind to carry out the procedure, then press "N", which symbolizes "NO" ("No"). After entering the command, press ENTER.

Lesson: How to activate the "Command Line" in Windows 7

Method 6: Windows PowerShell

Another option for starting the procedure for scanning the media for errors is to use the built-in windows tool PowerShell.

As you can see, check the hard disk on errors in Windows 7, as using a number of third-party programs, and using the built-in Check Disk utility by running it in various ways. Error checks implies not only the carrier scanning, but also the possibility of subsequent correction of problems. True, it should be noted that such utilities are better not to use too often. They can be applied when one of the problems that have been described at the beginning of the article. In order to prevent the program to verify the drive, it is recommended to run no more than 1 time in a half.

We are glad that you could help you solve the problem.

Survey: Do you help this article?

Well no

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Check the hard disk errors. Check hard disk on errors, windows 7

Often the unstable computer operation is associated with file errors hDD systems. To cope with this problem, you need verification of hard disk errors. Among other things, it would be nice to know about the state of the hard drive, if during the PC operation it makes strange sounds, such as clicks or grinding. If information about the damage to the hard disk is obtained in advance, you can save all user data before the device output.

Victoria.

First of all, you will need a specialized program. One of the best and most reliable is Victoria. With its help, on any operating system, a hard disk is checked on errors. Windows 7 Do you have installed, XP or 8, "Victoria" will work steadily running each.

The application is absolutely free and can be downloaded from the developer's site. At the same time it applies in two versions. First - standard binary packages for running in OS. The second is an ISO image to start without the need to load the operating system. It is convenient when Windows refuses to work due to HDD errors.

If the HDD has a volume of about 700 GB, at least one or two hours will take a hard disk check for errors. Windows 7 will fulfill this procedure with built-in means much faster. However, the quality of testing and the amount of data obtained by "Victoria" will be incommensurable above.

Testing

First download the application. It comes in the archive. Remove it to any empty directory and double-click on the executable file. If the works are made in Windows 7 or 8, you must click on the EXE file with the right mouse button, and then select the "Run with administrator rights" in the context menu.

Checking the hard disk on errors should begin with several preparatory steps. After starting the program, go to the "Standart" tab. In the right part it will be possible to see all drives that are in the computer. Choose that HDD to be tested. Then click on the "Passport" button. If no troubles happen, the name and model of the hard disk will appear at the bottom of the window.

After that, go to the tab with the name "Smart" and click on the "GetSmart" inscription. If the status next to the button changes, it means that everything is done correctly. Typically, the word "Good" is displayed in this area, but "Bad" may appear. And in the first, and in the second case, the sensor data are read correctly.

Possible mistakes

It happens that the HDD controller works in AHCI mode. In this case, the SMART attributes will not work in any way, therefore it cannot be checked hard disk on errors. The program will send the message "Error Reading Smart" to Log. Also next to the button that is responsible for reading data from the sensors, "Non ATA" will be displayed, and the region itself is highlighted with red light under the text.

To allow "Victoria" to work with a hard disk, you need to change the BIOS settings. To go to them, you should click on the "DEL" button several times when the most first messages appear on the screen when the computer is loaded. The method of launching the utility bIOS settings may differ for different models motherboards. If the "DEL" key does not lead to positive resultsYou should familiarize yourself with the information that is easy to find on the developer's website.

After entering the BIOS, go along the Config path (may be Advanced) - Serial ATA - Controller Mode, and then change the parameter to compatibility. Remember that after completing the hard disk check, the settings should be returned to the initial state.

Continued verification

After the SMART information is properly reading, go to the "Test" tab and click on the "Start" inscription. After that, check errors on the hard disk will begin. In the main area of \u200b\u200bthe program, rectangles, which were previously monophonic, will become stained in different colors. To the right will be written the total number of sectors sorted by access time.

The focus is worth paying numbers near the blue and red labels. They are noted dead or broken sectors. That is, those access to which is impossible, or for their reading requires a lot of time. Thus, when contacting them, the computer seems to hang.

Restoration

To try to restore failure sectors, checking errors on the hard disk must be running again, but now set the switch located on the right, follows the "Remap" position. The program will mark "Bad" as a non-working, enters their addresses in a special area on HDD.

Be carefull! If the hard sector began to appear on the hard disk, most likely, after recovery, the drive will continue to "refrigerate". It is advisable to replace it or at least do backup All important data by copying them outside the HDD.

Built-in funds

Integrated tools can also be checked hard disk on errors. Windows 8 allows you to start it in several clicks.

• First open the conductor by clicking on the My Computer icon.
• Right click on any partition and select "Properties".
• Click the tab with the name "Service", and in it, click on the inscription "Check".

Check hard disk on errors via the command line

Command line - a powerful tool that is used by many system administrators During the solution of various problems of the system. The main advantage is to start testing even when the graphic shell refuses to start. It is worth using "Safe Mode with Command Line Support" by clicking the F8 key during windows downloadsBut even before the logo appears on the screen.

If the standard mode is working normally, to start the scan, follow these steps:

1. Click the "Windows + R" combination on the computer keyboard.
2. In the input line, the open window dial "cmd.exe" and click on the "OK" button.
3. Appears on the screen command line. To start checking, write to it "chkdskx: / f / r". Instead of the letter "x", click the one that is used in the operating system to designate the section requiring testing.
4. After the input, the OS may not reflect the impossibility of performing the procedure without the mandatory reboot of the PC. When the message appears, simply press the "Y" key and restart the computer. After that, checking errors on the hard disk will start automatically.

Remember: performing an HDD check, you should wait for its full end. Turning off this process only to be performed only by means embedded in the program. If you cannot stop the procedure, do not attempt to interrupt it by turning off the computer or by clicking on "Reset". These actions can lead to additional errors and damage on the hard drive. The most dangerous is the impossibility of recovering information after incorrect completion of work.

fB.ru.

How to check windows for errors

If your computer often freezes, does not start some programs or accidentally completes work, it makes sense to check the operating system for errors. They sometimes are so serious that it is possible to solve the problem only reinstalling the system.

For the prevention of serious damage to the system from time to time, check the disks on errors. To do this, use error check service. Go to My Computer, select one of the disks, call the "Properties" menu by clicking on the disk the right mouse button. In this menu, select the "Service" section, then "Check the disk for errors."

Well helps to prevent the emergence of serious disk defragmentation system. This is recommended at least once every six months. Go to the "Start" menu. Select "All Programs" - "Standard" - "Service". In this section, run the disk you need to defragm.

If you notice that a certain error appears regularly, you can try to find its cause and description in the OS. To do this, go to "Start", select "Control Panel" - "System and Security" - "Administration" - "View Events". Next, carefully inspect the items "Appendix" and "System". Errors will be marked with a red cross in a circle. Clicking by mistake, you will read the message about its reason. You can solve the problem by entering the Windows website and pointing the error number there.

If you are an active user network, do not forget about reliable antivirus. it software Significantly superior to reliability and capabilities standard system components. Antivirus and firewall are able to protect your computer from viruses, and the operating system from errors. Choose a proven software, for example, Kaspersky, Dr.Web, ESET NOD32 and so on.

To reveal and correct system errors also help various utilities. For example, cCleaner programs or Iobit Security 360. They help to diagnose the system and, identifying errors, fix them.

Remember that stop or interrupting the scan system for errors is prohibited. This can be fraught with a damage to the disk or data loss.

Sovetclub.ru.

How to perform a checked disk for errors in Windows 7

This article will help to figure out and correct the problems on your PC. First you need to find out why check the computer for errors. As a rule, you can observe the existence of a situation when the computer begins to reboot, while issuing some kind of tapping sounds.

The PC can also reboot several times per day and even when the computer is turned on, the start can be interrupted by the so-called death screen. Under the screen of death, the blue screen with white text is meant. It is to prevent such problems and need to be diagnosed.

Using the standard Windows utility

Application of the Chkdsk team

1. Click "Start", select "All Programs", click "Standard" and launch the "Command Line" utility;
2. For example, we wish to do the test of our disk (D :), then you should specify the "Chkdsk / R" command in the window and click on Enter.

This command is operating windows systems makes it possible to diagnose HDD and identify the presence of errors. She will also inform you about all the problems found.

Syntax and command parameters chkdsk

Team CHKDSK [TOM: [[PATH] File name]]] Begins the actual diagnostics of the hard disk in Windows. At the same time, square brackets should not be entered at the command prompt.

Tom - indicates that disc on which the operation will be checked or any other operation.

Path, file name - lists the name of the object or objects that work will be carried out. Applies only for FAT / FAT32 file system;

Description of the remaining parameters:

• / F - completely corrects all the problems found;
• / V - command for the NTFS file system, which shows the cause of the problem;
• / R - execution searches for and restores incorrect information;
• / X - if there is such a need, then completely disables the disk from the system for a deeper and thorough check. As a rule, use with the / f command;
• / I - less detailed diagnostics of disc elements. Produces the so-called "fast check";
• / C - makes it possible to skip the check of cycles inside the folder structure, the check is also fast, but not deep;
• / L: The size is the ability to change the size of the protocol file during the check to the specified value (in kilobytes). In the event of an emergency completion during the check, the protocol file is used;
• / B - the ability to re-evaluate the damaged clusters on the disk (only if there is a parameter / R).

The process of detecting errors on the hard disk in Windows can take the time depending on the speed of your computer and the presence of errors on this disk.

Hello, friends! Restore Windows 7 or Windows 8 / 8.1 system files is the most interesting topic. Especially if the operating system begins to bullure, and we have no recovery image and we forgot to turn on the system protection. To create a recovery point. In this case, we will not be able to restore the system from the image, we will not be able to roll back Windows to the created point of recovery and reinstall the system too lazy, as it will take a whole day. And just here we have another chance to return Windows to a normal state - try to restore system files. In this article I will try to fully disclose the topic so that you can reanimate our computer in any situation.

In the opened command line we write:

sFC / SCANNOW.

We wait a little ...

If you have a system in order, you will see the following image.

If Windows has been Paul, you will see the following.

System files have been successfully restored. Reboot and immediately turn on the system protection to create recovery points in order to just roll back the computer status a couple of days ago and that's it.

It happens that when scanning the SFC.EXE utility system has found damaged files, but it could not fix them. In this case, I would make restoring system files in safe mode. If in safe mode The same read the last of this article.

If it did not work out on the Recovery Wednesday by the F8 key, it will be necessary to boot from the installation (loading) flash drive or disk. How to boot from the flash drive -. In the same way, you can load boot from the disk. Only in this case you need a DVD-RW (drive to read optical disks) to prioritize the downloads to the first place.

I like to boot from removable media using the boot menu. In Asus motherboards, it is usually called also the key F8..

After booting from the flash drive or from the disk I saw the following picture. I choose Windows Setup. - Installing Windows.

We choose the one that we do not turn on. And here carefully! We remember the letter that has assisted the restoration environment of your system (in the folder column). I have it D..

We enter the command:

sFC / SCANNOW / OFFBOOTDIR \u003d D: \\ / offwindir \u003d D: \\ Windows

You can go to the disk and make sure that and where.

1. Use the utility Diskpart.

At the command prompt, enter:

diskpart. - Call the utility to work with discs.

lIST DISK. - We view the list of disks.

sELECT DISK. - I choose the hard drive you need.

For Windows 8 / 8.1

If the SFC utility could not recover damaged system files, then you need to try to restore the repository of these system files. The place where copies of serviceable system files should be located. As I understood, it is located at C: \\ Windows \\ WinSXS. That is, we first need to fix the file store, and after the SFC / SCANNOW command, restore Windows system files.

Storage Restore Using Windows Update

1. Run Windows PowerShell. with administrator rights. To do this, open the Start menu or initial screen And click on the "Search" icon. In the search box writing PowerShell. Click right-click on Windows PowerShell and select "RUN AS Administrator" or "Starting on behalf of the administrator".

In the opened window we write

DISM / ONLINE / CLEANUP-Image / RESTOREHEALTH

and wait. If the storage is an integer or managed to restore, using Windows Update.You will see the following picture.

If image Health State: Healthy - everything is fine. Reboot your computer and try again SFC / SCANNOW.

Restoration of the repository using the image

If we have problems with Windows Update, then this method will suit.

1. Download the original image of Windows 8 / 8.1 of the same bit as your system. How to find out the bit installed system — .

Connect or mount the downloaded image. Click on the right mouse button and select "Connect" or "Mount".

At the command prompt with administrator rights, we look at what editions in the form of a team

I have 2 editions in my image. What I need to understand on these distinctive signs. We use the first. If not go - the second.

1. Run Windows PowerShell with administrator rights and ask the command

Repair-WindowsImage -Source F: \\ Sources \\ Install.wim: 1

where, F - the letter of the disk to which we have connected the image, 1 is the Windows Edition Number in the image.

Restore system files manually

If using the SFC utility fails to restore boyed files, you need to try to do it manually. In this case, you need to additionally run the command

findStr / C:% Windir% \\ Logs \\ CBS \\ CBS.log\u003e% UserProfile% \\ Desktop \\ sfcdetails.txt

FINDSTR / C:% WINDIR% \\ LOGS \\ CBS \\ CBS.log\u003e SFCDETAILS.TXT

and carefully examine the file sfcdetails.txt on the desktop or in % WINDIR% \\ LOGS \\ CBS \\.

There must be something similar as in the figure below.

After the name of the damaged file is known (accessibility.dll), we look for it on another computer with the same system as yours. If this is not an option, I would download the original image of Windows and installed it on the virtual machine. I found the file you need and copied to the boot or installation flash drive. Then, with this mounting flash drive, it booted into the recovery environment, would launch the command line. From the command line would opened a notebook. Opened the File\u003e Open menu - and here I have a practically a full-fledged conductor. Copy with a replacement serviceable file from a flash drive, reboot and everything should work.

If you have an option with installation virtual machine Not suitable, you can connect the install.wim file to the folder. Then go to this folder and copy the necessary files.

1. Create a folder. For example, "Win8.1Pro" at the root of D.

Copy the install.wim file in the root of D. D.

Mount the install.wim file in the created folder.

We go to the created folder and copy the necessary files.

Turn off the image

DISM / UNMOUNT-WIM /MOUNTDIR :D:\\Win8.1PRO / Discard

Conclusion

So I will try to restore system files in Windows 7/8 / 8.1. Questions and wishes Write in the comments. Thank you for sharing the article in social networks. Good luck to you!

Sincerely, Anton Dyachenko

Or sFC.exe. represents a utility in Microsoft Windows. And is located in the folder C: WindowsSystem32. This utility allows users to scan and restore corrupt files. windows systems.

IN Windows 7. and Vista., program system file checks Integrated with Windows Resource Protection, which protects the registry keys and folders, as well as critical system files. If any changes are detected in a secure file system, the modified file is restored from the saved copy of the folder Windows.
So, if at any time if you find that you hacked some system files or possibly applied some tricks or can be replaced by system files during configuration Windowsand now you will find what your Windows OS Not working properly, you can consider the operation of this utility to restore the system.
For start system file checks in Windows 7. or Vista.,in field To start searching Enter type Cmd. . As a result, the command prompt window appears, right-click on Cmd.

In the command line window opens type SFC / SCANNOW. - Press ENTER. Utility SFC. It will work for a while, and if damage will be detected, they will replace them with saved. In case you are not able to start checking system files, and you will receive a message " Windows Resource Protection - Windows does not manage to start repairing "You can check whether it was included in your OS. Windows Installer Service modules. To do this, enter services.msc. In the search bar and press ENTER. The status of this service must be installed in the manual. In addition, you can also download very useful free utility Fixwin. and click on the button check system files . This will allow you to run SFC.EXE.
A few more SFC switches:
Single scanning for the next download: sFC / SCANONCE
Scanning with each download: SFC / ScanBoot
File cache cleaning: sFC / PURGECACHE.
Return by default: SFC / REVERT.
You can also use sFC.EXE program To assist in eliminating accidents that occur in part of the user regime Windows 7. and Vista.. These failures can be associated with missing or damaged operating system files. To do this, you need to have access to log files.
How to view the log file.
SFC.EXE program writes the details of each test operation and repair of each operation in cbs.log. file. Every time after launch sFC.EXE programs This file will be recorded tag. File cbs.log. Located in the folder % WINDIR% LOGSCBS You can search for tags that will help to find records. sFC.EXE programs. To perform this type of search and directions of results in text file, follow these steps:
Press the button StartEnter Cmd. in field To start searching, Right-click on Cmd. in the list Programs And select Run on the administrator.
Enter the following command and press ENTER:
FINDSTR / C: "% Windir% Logs CBS CBS.log\u003e SFCDETAILS.TXT
File Sfcdetails.txt Contains records that are recorded each time SFC.exe runs on a computer.
How to interpret log file records:
SFC.EXE program Checks files in a group of 100. Thus, there will be many groups of records SFC.EXE programs. Each entry has the following format: Date / Time / Entry_Type. For more information on how to interpret, visit

The problem is unstable windows work 7 is often associated with damage or deleting system files, for example, after reinstalling or installing an infected program. This is not the most difficult problem - there are a lot of ways to restore the data standard means OS or manually. The most simple and efficient options will look at further.

Rollback to the last stable state

Default in all windows for system sections Active protection. It is responsible for creating special checkpoints containing configuration information and system system files before it is modified - installing applications, drivers and updates. Moreover, the recovery points are created and without a similar reason by the system with a specific frequency or by the user itself.

If problems began to appear relatively recently, and you remember the approximate date of their appearance, then the best decision - Roll back the OS until it was not observed during the work of the failure.

In a working environment, make it very simple:

It will only be rebooted, after which the damaged system files will be replaced with the previous working versions.

If Windows does not load

Even if the damage to the system data is so serious that the OS cannot independently boot, the ability to use recovery points is:

The corresponding control point selection utility will be launched, to work with which the method described earlier.

If, when you press F8, the download options window does not open, you can only get on the recovery environment only when using boot / installation disk.

Using the standard SFC utility

This application checks and restores the main system system files. It can also be launched in the command prompt with boot disk, From the boot options window after pressing F8 and from the working system. The last option is the easiest:

Upon completion of the SFC operation, will notify you about the results - damaged data must be detected and corrected.

We restore data manually

Sometimes the methods described above cannot resolve the problem. For example, when updating DirectX from distributions supplied with various applications, often lost dLL libraries. Therefore, always try to update the DirectX from. Microsoft website, and if the trouble has already happened, then if you have new version All DLLs will be updated automatically after installation from the site http://www.microsoft.com/ru-ru/download/confirmation.aspx?id\u003d35 fresh package of components.

If there is no new version on the specified page, then any DLL from another source can be transferred to your system yourself. Libraries are stored in the following directories:

• for Windows 7 × 32 - in the C: \\ Windows \\ System32 folder;
• for Windows 7 × 64 - in the C: \\ Windows \\ SYSWOW64 directory.

If when you start any application, a window that informs about the absence of any DLL, and the installer from the Microsoft website reports on availability on your system latest version libraries and does not update the components, then you can simply take advantage search engine. On the Internet, find the DLL libraries and transfer them to the specified folders.

Not only the DLL libraries, but any damaged system files can be removed from the Windows 7 setting distribution. To do this, you just need to know which files are damaged. Often, OS itself informs the user about the absence of any DLL or an application error, for example, explorer.exe. You can get information yourself.

Learn which system information is faulty

To do this, you will need a command line, how to open it, we have already described. Record the following command here:

iNDSTR / N: »»% WINDIR% \\ LOGS \\ CBS \\ CBS.log\u003e »% UserProfile% \\ desktop \\ sfcdetails.txt», where N is the drive letter.

Press ENTER, after which the desktop will be created by sfcdetails.txt to be opened and closely viewed. Its content will be approximately as in the image below.

Here we see that the ACSESSILITY.DLL library is damaged. It will be necessary to find it on the network or independently extract from the available Windows 7 distribution for recovery.

Remove the components of the OS from the distribution

In addition to the installation disk, you will need a small free app 7-zip. With it, we will work with the image install.wim located in the Sources directory. The procedure is as follows:

Will only remain copy them to the desired folder or flash drive. Replacing the damaged data using the installation / bootable media or LiveCD.

As a result of some WINDOVS 7 failures and infections malicious programs There is a need to analyze the file integrity of the system. Also, the files are often damaged due to improper shutdown of PCs and pump voltage jumps. Therefore, each user "seven" should be able to produce an independent check and resuscitation of system files in a computer with Windows 7.

File Analysis Method

The main tool for testing and analyzing their integrity in the "seven" is the embedded in the OS application "sfc.exe", which besides this can and restore defective files. The regular use of the command to perform the SFC / SCANNOW test will ensure the uninterrupted work "WINDOVS 7". It is recommended to apply it at least once every half year.

Analysis procedure

Built-in in Windows 7 Checking means is started as follows:

Note: You can not close the console until the procedure is complete. At the end, the results of the work performed will appear.

1. Restart the computer;
2. Ready. Checking the integrity of the system is completed, and damaged files are corrected.

Sometimes it happens that the application cannot independently cope with the correction damaged files. In such cases, it is recommended to analyze in safe mode, but even if it does not allow you to eliminate the problem, then you need to perform: "Findstr / c:"% WINDIR% \\ LOGS \\ CBS \\ CBS.log\u003e "% UserProfile% \\ Desktop \\ SFC .txt.

After that, on the desktop "Windows 7" will appear "TXT" -File with a list of all files that the program is not able to reanimate itself. The user needs these files to copy themselves from another computer, but with good Windows 7, or from an external installation media with a distribution kit that modification "seven", which works on the user's PC.

Algorithm for recovery of the defeated file in manual mode

Now, knowing exact name and location problem file.which app in automatic mode I could not fix it, you must replace it. For this purpose, it is necessary to carry out the following sequential steps:

And if the application "sfc.exe" does not work at all?

It happens that the utility can not even start. In such a situation, the performance of the following applications should be analyzed:

1. Locator remote procedure procedures;
2. Remote procedure call;
3. Running DCOM server processes.

If these programs function normally, "SFC.exe" starts.

Also, the utility will not cope with its functions when the manual startup of the recovery service is activated in the Windows Module Installer Service.

Additional ways of analysis through "SFC"

If necessary, for example, to analyze the integrity of files on a remote OS or solve other different problems, then there are several following effective techniques:

1. Available to check and without a subsequent recovery process. To do this, using the algorithm of the instructions above, you need to use the SFC / VerifyOnly command.
2. If necessary, you can reanimate only a specific file by printing in the console: "SFC / SCANFile \u003d location".
3. In a situation, if you need to analyze "Windows" installed on another logical section of the hard drive, the command will help: "SFC / SCANNOW / OFFWindir \u003d Windows directory location".

Conclusion

Some users at their discretion modify files, change icons in the explorer and the like. After the application for analyzing and correcting the integrity of the OS, all the adjusted adjustments will be canceled and will again take the default view. Therefore, such owners of computers will need after the operation of the utility again fulfill all its operations on the system modification.