Windows Defender Real-Time Protection Troubleshooting Checklist - How to Fix Windows 11 Upgrade Stuck at 99%-Windows 10 Chrome Extensions Not Working: Troubleshoot

Updated 2026-07-28 20:54:08developer-tools
Windows Defender Real-Time Protection Troubleshooting Checklist - How to Fix Windows 11 Upgrade Stuck at 99%-Windows 10 Chrome Extensions Not Working: Troubleshoot
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.