
Command Prompt Troubleshooting Checklist for Windows
When Command Prompt stops working as expected—won't open, returns odd errors, or commands don't r...

When Command Prompt stops working as expected—won't open, returns odd errors, or commands don't r...

You may see error 0x80073b01 when opening Windows Security or trying to use its features. It usua...

When you see “Windows Defender failed to start” or “Windows Defender service terminated unexpecte...

You join a meeting in Microsoft Teams, but the app shows 'No audio device detected' or your micro...

You open Windows Security (formerly Windows Defender) and see nothing but a blank white or gray s...

When you try to start a video call in Microsoft Teams and see a "Camera permission denied" error,...