
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 Windows Security, click on Virus & threat protection, and get a blank page or a 404 erro...

After installing a recent Windows update, some users find that Windows Defender is missing or sho...

You try to install an app from the Microsoft Store, but get a 'permission denied' error and you d...

You see error 0xc004f074 when trying to activate Windows, often with a message about permission d...

When you type powershell in Command Prompt or a script and see “powershell is not re...