Fix Windows Security Connection Timeout Error - Fix Microsoft Store Error 0x80073cf6: Port Already Allocated-Chrome Profile Authentication Failed: How to Delete and Fix

Updated 2026-06-13 23:43:25developer-tools
Fix Windows Security Connection Timeout Error - Fix Microsoft Store Error 0x80073cf6: Port Already Allocated-Chrome Profile Authentication Failed: How to Delete and Fix
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.