DISM /?
DISM requires elevated privileges to modify system files. If you run it in a standard command prompt, it will fail with Error 87 . Open the and type cmd . dism error 87 fixed
: If this service is disabled, DISM may fail. Open Services (type services.msc in Run). DISM /
Always write Online: with a colon and a space before the next switch. dism error 87 fixed
DISM /Online /Cleanup-Image /RestoreHealth