Fix Windows Security 502 Bad Gateway Error
If you're seeing a "502 Bad Gateway" error when opening Windows Security (also known as Windows D...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Terminal Not Working After Update
After a Windows or Terminal update, you might see a blank window, crash on launch, or error messa...
Fix Windows Security High CPU Usage and Slow PC
If your PC feels sluggish and Task Manager shows Windows Security (or Antimalware Service Executa...
Fix Remote Desktop Blank Screen Due to Display Driver Issues
When you connect to a remote computer via Remote Desktop and see only a blank screen (black or gr...
Fix Windows Defender Service Not Starting (Error 404)
If you see error 404 when trying to start Windows Defender, it usually means the service executab...
Fix Windows Defender DNS Error 0x800704cf
You open Windows Defender and see error code 0x800704cf. This usually means Windows Defender can’...
Topic paths
Quick titles
Windows Search on Mac: Setup GuideResolve Windows Terminal Restore Error 0x80070005How to Fix Microsoft Store Loading Forever on Windows 10Remote Desktop Connectivity ChecklistMicrosoft Store High Memory & Error 0x80073cf0 FixHow to Restore Missing Windows Defender PoliciesWindows Search Not Syncing Between PCsFix Remote Desktop Backup Sync Issues After Restore