How to Fix Outlook Cannot Connect to Server - Chrome Extension Not Loading on Windows 10-Windows Store Error 0x80073cf9: How to Fix Installation Failures

Updated 2026-06-14 13:04:37backup-recovery
How to Fix Outlook Cannot Connect to Server - Chrome Extension Not Loading on Windows 10-Windows Store Error 0x80073cf9: How to Fix Installation Failures
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.