
Windows Defender Service Troubleshooting Checklist
If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

If your Windows 10 PC is running slow and Task Manager shows Windows Security (or Antimalware Ser...

You added a UFW rule to allow a port, it works fine until you reboot, then the port is blocked ag...

If you get a DNS error when searching in Windows 10—like "DNS server not responding" or "Server D...

If you're seeing a 'permission denied' error when trying to install or update apps from the Micro...

When running PowerShell scripts that make HTTP requests through IIS, you may encounter a 504 Gate...