How to Fix Windows Error 0x800F081F — DISM Source Files Not Found [2026]

Windows Error 0x800F081F: DISM Source Files Not Found

This error typically occurs when windows image corruption. Below you'll find 5 proven fixes to resolve it.

What Causes Windows Error 0x800F081F?

Windows error 0x800F081F (DISM Source Files Not Found) can be triggered by several issues:

Windows image corruption
Missing component store files
Group Policy blocking Windows Update
Incorrect DISM source path
Windows edition mismatch

How to Fix Windows Error 0x800F081F — Step by Step

Run DISM with Windows Update source

CMD as Admin:
DISM /Online /Cleanup-Image /RestoreHealth /Source:WU
This forces DISM to download source files from Windows Update.

Use Windows ISO as source

Mount a Windows 11 ISO (same edition/version). Then:
DISM /Online /Cleanup-Image /RestoreHealth /Source:E:\Sources\install.wim
(replace E: with your ISO drive letter)

Check Group Policy

Press Win + R > gpedit.msc > Computer Configuration > Administrative Templates > System > Specify settings for optional component installation > Set to 'Not Configured'. Restart.

Reset Windows Update components

CMD as Admin:
net stop wuauserv
net stop cryptSvc
ren C:\Windows\SoftwareDistribution SoftwareDistribution.bak
ren C:\Windows\System32\catroot2 catroot2.bak
net start wuauserv
net start cryptSvc

Run SFC first

Sometimes SFC needs to run before DISM:
sfc /scannow
Restart, then try DISM again.

Still Getting Error 0x800F081F?

IT Cares can diagnose and fix this error remotely — usually in under 30 minutes.

Call (581) 398-1270 Book Remote Session

Frequently Asked Questions

What does 0x800F081F mean?

DISM (Deployment Image Servicing and Management) can't find the source files it needs to repair Windows. The repair files are missing or inaccessible.

Where does DISM get its files?

By default from Windows Update. If that's blocked (Group Policy, no internet), you need to provide an alternative source like a Windows ISO.

Do I need the exact Windows version?

Yes. The ISO must match your Windows edition (Home/Pro) and version number. Mismatched sources cause this error.

Can I fix this without an ISO?

Yes — if Windows Update works, DISM can download files from there. Use the /Source:WU flag. If Windows Update is also broken, you'll need the ISO.

Is a clean install the only option?

No. In most cases, providing the correct source files fixes it. A clean install is only needed if Windows is severely corrupted beyond repair.

How to Fix Windows Error 0x800F081F — DISM Source Files Not Found