Why Windows Security App Keeps Crashing and How to Fix It - Fix Microsoft Edge Sync Error 0x80070424-Optimize Windows Search Indexing

Updated 2026-07-28 03:16:58macos-help
Why Windows Security App Keeps Crashing and How to Fix It - Fix Microsoft Edge Sync Error 0x80070424-Optimize Windows Search Indexing
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.