Fix Windows Defender Connection Refused via Group Policy
If you see a "connection refused" error when trying to open Windows Defender Security Center or r...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Windows Security Not Opening or Running Slow
If Windows Security (formerly Windows Defender) won't open or takes forever to load, it's usually...
Fix Windows Security High Memory Usage
If you notice that Windows Security (formerly Windows Defender) is using a lot of memory—sometime...
Fix BitLocker 502 Bad Gateway During Recovery Key Retrieval
When you're locked out of a BitLocker-encrypted drive and the recovery key page returns a 502 Bad...
How to Fix PowerShell Blank Screen Not Responding
When you open PowerShell and see nothing but a blank, unresponsive window, you can't run commands...
How to Configure Windows Search to Exclude Specific Folders
If Windows Search returns results from folders you'd rather keep out of its index—like backups, t...