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Dism Error 87 Fixed [best] -

DISM Error 87

How to Fix DISM Error 87: "The Parameter is Incorrect" Encountering typically occurs when you are trying to repair a corrupted Windows image or prepare a system for an update. The error message usually states, "The parameter is incorrect" or "The cleanup-image option is unknown."

Scenario 2: Specifying a custom source with DISM /Online /Cleanup-Image /RestoreHealth /Source:WIM:E:\sources\install.wim:1

Quick Fixes (try first)

Then reboot and try DISM again.

DISM /Online /Cleanup-Image /RestoreHealth

  • | Mistake | Correction | |---------|-------------| | DISM /Online /Cleanup-Image /Restore Health | Remove space: /RestoreHealth | | DISM /Online /Cleanup-Image /RestoreHealth /Source:... | Use correct syntax with Source after RestoreHealth | | Using DISM /RestoreHealth alone | Must include /Online /Cleanup-Image | | Typo in command | Double-check spelling and slashes | dism error 87 fixed

    If you need a custom source: