Fix Microsoft Teams SSL Certificate Errors in Enterprise - Find Windows Activation Log Files-Windows Defender Failed to Start: Error 0x800106ba

Updated 2026-06-18 08:02:02developer-tools
Fix Microsoft Teams SSL Certificate Errors in Enterprise - Find Windows Activation Log Files-Windows Defender Failed to Start: Error 0x800106ba
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.