Fix PowerShell Cannot Connect to Office 365 - Troubleshoot Windows Defender Update Stuck at 0%-Fix Git Non-Fast-Forward Rejection

Updated 2026-06-14 15:37:57office-tools
Fix PowerShell Cannot Connect to Office 365 - Troubleshoot Windows Defender Update Stuck at 0%-Fix Git Non-Fast-Forward Rejection
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.