How to restore system files in Windows 7
What should I do when the system files for some reason have sunk into oblivion and the computer can not work properly? Do not worry, because you can correct the situation.
Causes of system file extinction
It often happens that the system files "Windows" disappear. Their absence interferes with the normal operation of the system or even worse - it does not allow running "Windows". The reasons for this may be different:
- the system file is deleted by the virus or blocked by the antivirus;
- accidentally, through the fault of the user of the computer;
- because of the updates of "Windows" (if updates occur continuously for a long time, they begin to block each other).
Of course, you can go to extreme measures andReinstall the system. But this is not an option, if working documents are stored on the desktop or folders of the system disk, which can not be lost, because after the reinstallation they will definitely disappear. Before doing this, it is still worth trying to restore the system files for Windows 7.
The work of viruses
It often happens that the computer is infected with a virus,after which the system file was corrupted and was deleted. In this case, you need to look into the antivirus logs. There, you will specify how the file was deleted, when and which virus was infected.
Sometimes it happens that the antivirus itself after the updateThe OS blocks important data. In this case, you need to go to the "Quarantine" section of the antivirus and find the missing files, then restore and put them on the white list or change the antivirus program.
On Windows 7, system file recoverycan implement a third-party program, for example, Recuva. It is completely free and easy to use even for those who will do it for the first time. Download it, install it. After launching it, the first thing to do is go to the advanced mode (the button on the upper right), then select the directory to scan (the Windows folder) and start scanning.
After checking the system fileswill end, there will be files with multi-colored circles nearby (green - excellent condition, yellow - damaged, red - can not be restored). If the check shows that the desired object is in excellent condition, you can easily restore it by selecting the checkmark and clicking on "Restore".
Doing a rollback
Recover the operating system from theusing a control point that was created before the error occurred. The algorithm is as follows: Start / All Programs / Standard / System Tools / System Restore. Choose the OS recovery point that was created before the loss of important data. Start the rollback, after which the system files and Windows folders will be restored. However, the installed programs after it will be deleted. You can see the estimated losses by clicking the "Search for Affected Programs" button.
In the event that Windows 7 recoverysystem files using an extraneous program is impossible and you can not rollback, you need to scan the computer for corrupted and missing data. In this case, the command line will help.
We open it as an administrator. There are several ways to do this:
- Start / All Programs / Standard, right click on cmd (command line) - "Run as administrator".
- We go to the system disk, Windows folder, System32, right mouse button on cmd - "Run as administrator".
- In the Start search, enter cmd and press Shift + Ctrl + Enter.
In the window that appears, write sfc / scannow, after which the Windows 7 system files will be scanned for integrity and recovery in case some of them fail.
After the restoration, it is necessary to make a point forrestore the OS to the next time to rollback, rather than restore individual data. The algorithm is as follows: open the "Properties" section in "My Computer", on the right side select the "System Protection" section. In the "Security settings" section, protection must be enabled on the system disk. If it does not, select it, click "Configure" and put the dot next to "Restore system settings and previous versions of files." We choose a place for disk space (1.5-2 GB is enough). Click OK. Then click "Create", give a name.
Now you can restore system files on Windows 7.
Windows 7 does not start, system file recovery
At boot time, you need to press F8 constantly,Until the list and the inscription "Last good configuration" appear. We click on it, after which the system should start from the moment when "Windows" successfully loaded the last time. If it did not work out, select "Troubleshoot a computer". In the list, click on "Startup Recovery". The Windows 7 system files will be checked for errors and faulty data, then restore them by clicking "Repair and restart".
Also, if you previously created a recovery point, you can restore the OS to its previous state by rolling back.
If due to the loss of data, the operating system does notboot, you can restore it to the normal state using a boot disk or a USB flash drive. We insert a disk or a flash drive into the computer, we reboot it. Next, the bootable media must be put in first place in priority. You can do it like this:
- In the BIOS settings. We go in BIOS (key F2, F11 or del) and look for Boot Manager. There we put the USB flash drive or drive to the first place in the priority. If the USB flash drive is not displayed, you need to activate USB support in the settings. For each BIOS version, these settings look different.
- Before starting the OS, press the menu keyload (F8, F11 or F12), after which Boot Manager will exit with a list of drives, in which we select the desired one. If the boot "Windows" on the USB flash drive and it does not appear, you need to activate USB support in the BIOS settings.
If the desired drive is selected, it will startinstallation of Windows 7. After selecting the language, click "Next", then on the bottom left side select "System Restore". In the pop-up window, select "Startup Recovery" or "System Restore". The next steps are already familiar.</ p>>