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How to Fix Microsoft Store Not Opening on Boot - Fix OneDrive Sync Error 0x80070020: File Locked-How to Fix Windows Defender Version Mismatch

Updated 2026-06-18 02:19:01macos-help
How to Fix Microsoft Store Not Opening on Boot - Fix OneDrive Sync Error 0x80070020: File Locked-How to Fix Windows Defender Version Mismatch
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.

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