Fix Windows Activation Blank Screen Stuck on Startup - Fix Microsoft Store Permission Denied and Access Denied Errors-Windows 502 Bad Gateway Activation Troubleshooting

Updated 2026-06-13 19:09:33cloud-software
Fix Windows Activation Blank Screen Stuck on Startup - Fix Microsoft Store Permission Denied and Access Denied Errors-Windows 502 Bad Gateway Activation Troubleshooting
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.