
Windows Defender Troubleshooting Checklist for Common Errors
Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background. But w...

Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background. But w...

Seeing a 404 Not Found error when opening the Microsoft Store is frustrating, but it's often fixa...

If your computer is running slowly or you're running low on disk space, temporary files and cache...

If Command Prompt opens briefly and then closes immediately, or crashes during use, corrupted sys...

You open Microsoft Store and see a message that your token has expired, or apps won’t sync purcha...

You open Windows Security and see a red banner: “Windows Security service is not running.” Or you...