Fix Windows Defender Stuck on Loading Black Screen
If Windows Defender (Microsoft Defender Antivirus) hangs on a black screen with a spinning or fro...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Windows Defender Slow Startup in Windows 10
If your Windows 10 PC takes longer to boot up and you suspect Windows Defender is the cause, you'...
Fix Windows Security 502 Bad Gateway Error
If you're seeing a "502 Bad Gateway" error when opening Windows Security (also known as Windows D...
Fix Firefox Secure Connection Failed Certificate Errors
You try to open a website in Firefox and see a full-page error: "Secure Connection Failed" with a...
Fix Windows Update Service Permissions: Access Denied Error
When you try to run Windows Update or start the Windows Update service, you might see an 'Access ...
Stop BitLocker Asking for Password at Boot
If your Windows PC prompts you for a BitLocker password every time you boot up, you're likely usi...