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Fix Windows Security Authentication Failed Event ID 4625 - Fix Microsoft Store Service Unavailable Error Windows 10-How to Fix Slow Windows Search Performance

Updated 2026-06-13 17:05:40macos-help
Fix Windows Security Authentication Failed Event ID 4625 - Fix Microsoft Store Service Unavailable Error Windows 10-How to Fix Slow Windows Search Performance
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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