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?


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

Dism /Online /Cleanup-Image /RestoreHealth /source:wim:D:\sources\install.wim:1 /limitaccess

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

  • Thank you, the Windows 8.1 RTM DVD released in December did include the necessary install.wim. – Gabriel Jan 29 '15 at 16:41

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