Fix PowerShell Proxy Authentication Failed Errors
You run a PowerShell command that needs internet access—like Invoke-WebRequest or
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Microsoft Store 502 Bad Gateway & Permission Denied
You open Microsoft Store and see a 502 Bad Gateway error, sometimes accompanied ...
How to Fix Windows Update Error 404 Not Found
You see error 404 when checking for updates in Windows Update. This usually means the update serv...
Fix Windows Update Login Loop After Configuration Settings
You restart your computer after a Windows update, and instead of reaching the desktop, you see th...
How to Fix Microsoft Store Error 404 (Not Found)
If you see a 404 error when trying to open an app or page in the Microsoft Store, it usually mean...
Fix Command Prompt High CPU Usage After Closing CMD
You close Command Prompt, but your CPU fan keeps spinning. Task Manager shows high CPU usage from...
Topic paths
Quick titles
Windows Update Broke Search? Fix SSL Certificate ErrorHow to Fix Firefox Profile Missing ErrorFix Windows Update Stuck on Login Screen: Practical StepsFix 'Connection Refused' Error in Windows Security for Remote DesktopTroubleshooting Windows Defender 502 Gateway ErrorTroubleshooting Windows Search Indexing with LogsHow to Fix Windows Activation After Cache Clear FailsHow to Stop a systemd Service from Restarting in Loop