Are you seeing a specific (like 0x800...) alongside this log entry in the Event Viewer?

: For persistent errors where standard repairs fail, performing a repair install (keeping all apps and files) can "patch" the system by overwriting damaged update files. Microsoft Learn Event Viewer

Start with – it resolves over 70% of these cases. If the error persists, escalate to the manual reset of SoftwareDistribution. In the worst-case scenario, an in-place upgrade will cleanly overwrite any corrupt "patched" binary without losing your data.

: A known issue where the March 2026 update broke Microsoft account sign-ins was resolved by update Microsoft Learn Root Causes of UXIM Log Failures

Most users find that these steps resolve the underlying update conflicts causing the log failure. 1. Clear the RUXIM Registry Key

The most effective way this is "patched" manually is by repairing the underlying Windows image. If the UXIM component is corrupted, these commands replace the broken files with healthy versions from the Windows component store. sfc /scannow DISM /Online /Cleanup-Image /RestoreHealth 2. Resetting Windows Update Components

Warning: Do not delete registry keys unless you have a backup. Simply changing a "Disabled" DWORD to "1" can often re-enable the provider. Conclusion