0x800F081F — Source files could not be found

0x800F081E — Source files cannot be found

What does this error mean?

DISM or Windows Update does not find the files needed to repair or install a Windows component.

Probable causes

• source of repair absent
• Windows Update or WSUS inaccessible
• ISO image of another build
• optional component requiring a local source

Verification and resolution

1. Check the exact version and build of Windows
2. Test the access to Windows Update or WSUS
3. Mount an ISO corresponding to the same version if a local source is required
4. Relaunch DISM with /Source and /Limit access only if the source is correct

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