Recovery tool usage method to repair unstable Windows(Dism.exe & SFC.exe)

This is a repair method when the operation becomes unstable because the Windows 10 system file is corrupted or rewritten.

Windows settings Windows10 Anniversary Update Windows10 Creators Update
Last Update:2017/6/1   English
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  Recovery tool usage method to repair unstable Windows(Dism.exe & SFC.exe)


There are various factors that make the behavior of Windows unstable, but if it is caused by a system file, symptoms may be improved by using the recovery tool provided by the OS standard. Here we will introduce two tools, "Dism.exe" and "System File Checker (SFC.exe)".



Cause:

Dism.exe is a tool to check whether the Windows system file is damaged. If the system file is corrupted, you can repair the damaged file from Windows Update or OS install resource.

SFC.exe is a tool for checking whether the system file has been rewritten. When installing old software, the OS system file may be overwritten and the operation of Windows may become unstable. "SFC.exe" checks the integrity of the system file and restores the file if there is a problem.



  Dism and SFC are done from a command prompt or Windows PowerShell.


Firstly use Dism.exe to repair damaged system files, then use SFC.exe to check file consistency. Both tools are done from a command prompt or Windows PowerShell.


① Right-click the button and select Command Prompt (Administrator).For Creators Update, please click Windows PowerShell (Administrator).

start menu select command prompt

② If you are prompted for an administrator password or confirmation, enter the password or click Allow or Yes.

User Account Control select yes

③ Type the following command and press Enter.(It might take several minutes for the command operation to be completed.)

DISM.exe /Online /Cleanup-image /Restorehealth

command prompt type the following command

④ Type sfc /scannow and press Enter.(If "Another servicing or repair operation is currently running" is displayed, please wait for a while and try again.)

command prompt type the following command

⑤ The operation is completed when the following completion message is displayed.(It might take several minutes for the command operation to be completed.)。Please restart your computer and check whether it works normally.

command prompt

Note :

Dism.exe uses Windows Update to repair system files. If you have any problems with the offline environment or the Windows Update client, you can repair the system file as a resource such as Windows 10 installation media. To do this, enter the following command instead:

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:\RepairSource /LimitAccess

hint:Please replace C:\RepairSource with the installation resource of Windows 10.