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Fix Microsoft Store Auto-Launch Failure with Error 0x80073cf0 - Add Backup Folders to Windows Search Index-OneDrive 404 Error on Shared Files: Quick Fixes

Updated 2026-06-17 21:17:36developer-tools
Fix Microsoft Store Auto-Launch Failure with Error 0x80073cf0 - Add Backup Folders to Windows Search Index-OneDrive 404 Error on Shared Files: Quick Fixes
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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