Hi Sean Beatty,
Thanks for reaching out to Microsoft Q&A Forum. The error 0x80070003 means System Restore can’t replace files inside WindowsApps or WindowsApps.tmp. These folders are locked by system permissions and by AppX package integrity, so normal restore points often fail. Please try following steps:
1, Try System Restore from WinRE with AppX repair disabled
- Boot to Advanced Startup > Troubleshoot > Command Prompt
- Run:
dism /image:C:\ /cleanup-image /revertpendingactions - Restart
- Try System Restore again from Advanced Startup, not from inside Windows.
2, Rename WindowsApps.tmp to bypass the failing package
- Also boot to Advanced Startup > Command Prompt
- Run:
takeown /f "C:\Program Files\WindowsApps.tmp" /r /d y
icacls "C:\Program Files\WindowsApps.tmp" /grant administrators:F /t
ren "C:\Program Files\WindowsApps.tmp" WindowsApps_backup
- Try System Restore again.
3, Restore using your full external backup instead of System Restore
- Boot from your backup software recovery media
- Restore the entire image from 12/14/25 or 12/29/25
4, If none of the above work: Reset Windows while keeping files
- Go to Advanced Startup > Troubleshoot > Reset this PC > Keep my files
- Reinstall apps after reset
About access to WindowsApps / WindowsApps.tmp
- These folders are always restricted, even in Safe Mode
- You can only access them in WinRE Command Prompt using
takeownandicacls - Safe Mode does not grant full access
The initial response might not address the problem. So, if your problem persists or you need any assistance, feel free to ask me by clicking "Add Comment" or "Post Answer" if you cannot add comment. This helps me can read your follow up. Thanks for your effort.
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