Fix SSL Certificate Verify Failed in Command Prompt - Outlook High CPU and Error 0x8004010f Fix-Windows Defender Update Stuck: Troubleshooting Guide

Updated 2026-06-14 21:23:30macos-help
Fix SSL Certificate Verify Failed in Command Prompt - Outlook High CPU and Error 0x8004010f Fix-Windows Defender Update Stuck: Troubleshooting Guide
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.