Windows 8 – How to run DISM against a local source?

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How can I run DISM agaisnt a USB Windows installer to repair my local Windows files?

This is what I tried in Windows 8.1:

DISM /Online /Cleanup-Image /RestoreHealth

It returns error 0x800f081f:

enter image description here

Note that my WinSxS folder has several folders and sizes 6.88 GB, however DISM won’t detect it.

I understand that a healthy source can be a Windows USB Installer.

How can I do this?

Solution:

You can point to  the WIM file of the Windows 8.1 RTM DVD:

Dism /Online /Cleanup-Image /RestoreHealth /source:wim:D:sourcesinstall.wim:1 /limitaccess

(where D: is your Windows DVD drive or mounted Win8.1 ISO)

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