Fix Microsoft Store Error 0x80073cf0: Version Mismatch - Fix Outlook High CPU Usage After an Update-Run Windows Defender on Ubuntu: Practical Methods

Updated 2026-06-14 05:24:17windows-fixes
Fix Microsoft Store Error 0x80073cf0: Version Mismatch - Fix Outlook High CPU Usage After an Update-Run Windows Defender on Ubuntu: Practical Methods
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.