
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...

You open Microsoft Edge and see a configuration error message, or the browser behaves oddly—setti...

If the Microsoft Store app is missing, won't open, or keeps crashing, you can reinstall it using ...

You open Outlook 365 and see a security certificate warning: "There is a problem with the proxy s...

You open Chrome, but instead of your home page, you get a blank white screen. The browser window ...

You try to open Windows Defender Security Center or run a scan, and you get a 'permission denied'...