Dism Error 87 Fixed Jun 2026

If the syntax and permissions are correct, the Windows Update service, which DISM may rely on for repair files, could be the issue.

DISM /Online /Cleanup-Image /RestoreHealth /source:WIM:D:\sources\install.wim Error: 87 Diagnosis: Copy-pasted from a forum missing the image index. Fix: Added :1 to the end of the WIM path. dism error 87 fixed

He saved the command syntax into a Notepad file on his desktop, titling it If the syntax and permissions are correct, the

DISM requires administrative access. Running the command in a standard Command Prompt window will often result in Error 87. Wrong Windows Version: He saved the command syntax into a Notepad

If you’ve ever tried to repair a Windows system image using the Deployment Imaging and Service Management (DISM) tool, you might have been greeted by a frustrating message:

A: It can. DISM is generally backward compatible, but using a newer image to repair an older OS can cause "Parameter is incorrect" errors. Always match the OS version (Windows 10 22H2 ISO with Windows 10 22H2 PC).