It’s normal for the progress bar to stay at 20 percent for a while, so don’t worry about that. Type the following command and then press Enter to have DISM check your Windows component store for corruption and automatically fix any problems it finds.ĭISM /Online /Cleanup-Image /RestoreHealthĪllow the command to finish running before closing the Command Prompt window. To run the DISM command in Windows 8 and 10, open a Command Prompt with administrative privileges. However, if the SFC command fails to run properly or can’t replace a corrupted file with the correct one, the DISM command-or System Update Readiness Tool in Windows 7-can sometimes fix the underlying Windows system and make SFC run correctly. You shouldn’t normally have to run the DISM command.
