Fix 'Windows Defender Command Not Found Access Denied'
You type MpCmdRun.exe -Scan -ScanType 2 or another Defender command in Command Promp...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labBitLocker Update Troubleshooting Checklist
After a Windows update, BitLocker may prompt for a recovery key, fail to unlock, or show error me...
Fix Windows Defender Antivirus Permission Denied Error
You try to start Windows Defender Antivirus and get a “permission denied” error. This typically h...
How to Fix Windows Defender File Locked Error 0x80070020
Error 0x80070020 often appears when Windows Defender (Microsoft Defender Antivirus) is scanning a...
Fix Windows Defender SSL Certificate Error
If Windows Defender shows an SSL certificate error, it usually means the antivirus can't verify t...
Fix 'Port Already Allocated' Error on Windows 10 for Chrome
When launching Chrome or a web app that uses Chrome, you might see an error like "Port alread...