How To Fix DISM Error 87 (Cleanup-Image Option is Unknown) - NEW 2025✅
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Getting DISM Error 87: The option cleanup-image is unknown when trying to run the DISM tool in Windows 11 or 10? This usually happens due to incorrect command syntax, missing spaces, or older PowerShell versions. In this video, I’ll show you exactly how to fix this error and correctly use DISM to repair your system image.
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WHAT CAUSES DISM ERROR 87?
• Incorrect command formatting (missing spaces or dashes)
• Running the command in the wrong shell (non-elevated PowerShell or CMD)
• Outdated Windows versions or corrupted system tools