Fixing Windows Security Proxy Configuration Issues
When Windows Security (formerly Windows Defender Security Center) can't update virus definitions ...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Windows Defender 504 Gateway Timeout Configuration Error
When you see a 504 Gateway Timeout error in Windows Defender, it usually means t...
How to Fix Windows Security Virus Protection Turned Off
If you see a warning that Windows Security virus protection is turned off, it usually means the b...
How to Fix Command Prompt High CPU Usage on Windows 10
If you notice high CPU usage in Task Manager attributed to Command Prompt or
Fix 'File Being Used by Another Process' in PowerShell
When you run a PowerShell script that tries to read, write, or delete a file, you might see the e...
Fixing PowerShell Authentication Failures in Active Directory
You're running a PowerShell command against Active Directory and get an authentication failure. T...