DISM /Online /Cleanup-Image /RestoreHealth /Source:WIM:X:\Sources\Install.wim:1 /LimitAccess (Replace X: with your DVD drive letter)
If you have the option, upgrade to Windows 10/11 for repair operations. Microsoft has effectively abandoned DISM servicing for Windows 7 as of January 2023. Have a different error code? Let me know in the comments below. how to fix error 87 dism windows 7
Specifically, the /RestoreHealth switch with the /Online flag behaves entirely differently on Windows 7. If you copy-paste a Windows 10 command into a Windows 7 CMD window, you will trigger Error 87 immediately. Fix 1: Use the Correct Syntax for Windows 7 You cannot use /RestoreHealth directly on a live Windows 7 OS using the built-in DISM. Instead, you must target an offline image. you must target an offline image.