Fix OneDrive Error 0x80070005: Proxy and Permission Issues - Resolve File History Backup Errors in Windows 10-Resolve Authentication Failed in Command Prompt
Before changing system settings, save your work and note the exact error text so you can compare results after each step.
Extra verification checklist
- Restart the affected app after changing permissions or configuration files.
- Test the same workflow in a clean browser profile or a temporary user account.
- Compare the result on another network if the error may be connection related.