How to Fix Windows Update 404 Not Found Error - OneDrive Not Syncing All Files? Try These Fixes-Fix OneDrive Not Syncing After Windows 11 Update

Updated 2026-06-13 19:29:57macos-help

How to Fix Windows Update 404 Not Found Error - OneDrive Not Syncing All Files? Try These Fixes-Fix OneDrive Not Syncing After Windows 11 Update

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.