Hi,
Thanks for posting in Q&A platform.
This error message basically states that DISM was unable to find the files required to fix the online Windows image in their default location. To resolve this issue, you have to either run a component clean up and then an SFC Scan or provide DISM with a location that contains the files it needs to attempt the image repair. You can also fix this by upgrading Windows via the media creation tool on the Microsoft website.
Please kindly check if methods in the following link was helpful:
Fix: DISM ‘restorehealth’ error 0x800f081f
Best Regards,
Sunny
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