
Windows Defender Troubleshooting Checklist
Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...

Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...

You open PowerShell, run a command to connect to Office 365, and get an error: "Cannot connect to...

You restart your PC to install updates, but instead of the usual progress screen, you get a blank...

You open Microsoft Store or a Store app and see an error like 'module not found' or 'configuratio...

Windows Security may stop working with a proxy error, often due to misconfigured proxy settings o...

You see "sync timeout" or "permission denied" in OneDrive, and files aren't updating. This usuall...