Fix Windows Terminal 'Unable to Verify the First Certificate' Error - Fix PowerShell Reset Not Working – Step by Step-Safe Mode Windows Defender Token Expiration Solution

Updated 2026-06-13 17:27:18office-tools
Fix Windows Terminal 'Unable to Verify the First Certificate' Error - Fix PowerShell Reset Not Working – Step by Step-Safe Mode Windows Defender Token Expiration Solution
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.