Fix Windows Activation 504 Gateway Timeout Error - Microsoft Store Not Opening: Step-by-Step Troubleshooting Checklist-How to Break the Microsoft Store Sign-In Loop After Update

Updated 2026-06-14 04:47:40office-tools
Fix Windows Activation 504 Gateway Timeout Error - Microsoft Store Not Opening: Step-by-Step Troubleshooting Checklist-How to Break the Microsoft Store Sign-In Loop After Update
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.