Dism Error 87 Fixed Jun 2026

DISM Error 87 Fixed: Complete Guide to Solving "The Parameter is Incorrect"

DISM /Online /Cleanup-Image /RestoreHealth ✅

Press the , type cmd , and right-click Command Prompt . Select Run as administrator . Carefully type or copy-paste the exact string below: DISM.exe /Online /Cleanup-Image /RestoreHealth Use code with caution. Press Enter and wait for the verification to reach 100%. 2. Run Command Prompt with Elevated Privileges dism error 87 fixed

Some DISM options are not available in older Windows versions (e.g., Windows 7). For example, /RestoreHealth works on Windows 8 and later. On Windows 7, you need to use the System Update Readiness Tool instead.

No. It just means DISM didn’t understand your command. Your system files are safe. DISM Error 87 Fixed: Complete Guide to Solving

Then reboot and try DISM again.

Once complete, restart your computer and try the DISM command again. Summary of Solutions Ensure spaces exist before every / (e.g., /online ) Low Privileges Run Command Prompt as Administrator Wrong Driver Command Use /driver: instead of /path: Typo/Syntax Error Verify the command spelling Press Enter and wait for the verification to reach 100%

When Windows Update is not available or fails, you can point DISM to a local source for repair files, such as a Windows installation ISO or USB drive.