Thank you very much for your reply. When I was executing command DISM, the Command Prompt reported an error.
The error message is as follows:
Error: 0x800f081f.
The source files could not be found.
Use the "source" option to specify the location of the files needed for the restoration feature.
For more information about specifying the source location, please refer to https://go.microsoft.com/fwlink/?LinkId=243077.
The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log.
My problem persists even after I restarted my computer.