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dism error 87 fixed

DISM /Online /Cleanup-Image /RestoreHealth ✅

How to Fix DISM Error 87: "The Parameter is Incorrect" (2026 Guide) dism error 87 fixed

The Windows Update or DISM-related background services are disabled. How to Fix DISM Error 87 (Step-by-Step)

DISM /online /cleanup-image /restorehealth /source D:\sources\install.wim /limitaccess DISM /Online /Cleanup-Image /RestoreHealth ✅ How to Fix

By carefully verifying your spacing, ensuring administrative access, and clearing out stuck Windows Update files, you can quickly move past DISM Error 87 and successfully restore your operating system's health.

If you see "parameter is incorrect" for a switch, retype hyphens manually: ASCII minus (-) not en-dash (–). Use the proper RestoreHealth syntax with a known

Use the proper RestoreHealth syntax with a known good source:

Need help with another DISM error? Check our guides for Error 0x800f081f, Error 0x800f0906, or Error 1392.

dism /image:C:\mountdir /cleanup-image /restorehealth /source:wim:X:\sources\install.wim:1

Understanding the root cause of the error helps you select the correct fix. The most common triggers include: