How does the Win10 system repair system boot files? What is the boot area repair command?

If we experience a sudden power loss during the use of the Win10 system, or after a major situation such as a system blue screen, Windows does not boot properly. Usually we will try to boot into a safe mode that only loads the least drivers to try to solve the problem. If even Safe Mode fails to boot, you need to consider whether the boot record for Win10 has been corrupted. How does the Win10 system repair the system boot files?

In fact, the boot record of Win10 includes two parts: boot configuration data (BCD) and master boot record (MBR). Usually, Windows cannot start normally because both parts are damaged or inaccessible. of. In this case, you will usually see a boot error message similar to the following:

The boot configuration data store can not be opened.

The requested system device cannot be found.

Unable to open the launch configuration data store.

The requested system device was not found.

When Win10 has a boot record failure, it usually prompts that the partition where Windows is installed is locked and requires a constant reboot to try to unlock.

Manually repair Win10 repair system boot file method:

If automatic repair can not solve the problem, you can try the following steps to manually repair the boot record:

1, use Win10 boot disk or U WinPE boot into the "command prompt";

2, execute:
bcdedit /enum

command, if you see the following figure tips, description of the boot record has been damaged;

3, execute the following command to locate bad sectors and recover readable information:
chkdsk /r

after the disk check is complete, you can try to restart the computer to view the problem Whether it is resolved.

4, if the problem persists, please reboot into the "command prompt" use the following command to try to rebuild and restore the corrupted Win10 system files:
sfc /scannow

5, and finally execute the following The command repairs Win10's master boot record and rebuilds the BCD configuration file:
bootrec /scanos bootrec /fixmbe bootrec /fixboot bootrec /rebuildbcd

6. Re-use after the repair is complete:
bcdedit /enum

The command lists the items in the store for viewing. If the repair is successful, it may restart the login to Win10.

thunderstorm, a typhoon power failure situation may arise, not only may suffer system boot, in addition to installing a dual system, virus damage, is hard error sectors, etc. Problems can cause damage to the boot file.