How to Fix Windows Security Not Responding
Windows Security (formerly Windows Defender Security Center) may stop responding, hang on launch,...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labHow to Fix Windows Update That Failed to Install Manually
You click 'Install now' on a Windows update, wait through the progress bar, and then see 'Update ...
Windows Defender Service Not Working in Windows 11: Fixes
If Windows Defender won't start or shows a service error in Windows 11, your system may be unprot...
Fix Windows Search Indexing Service Won't Start
You open Task Manager or Services and see that the Windows Search service is stopped. When you tr...
Fix Windows Security Can't Connect to Server Error
When you see "Windows Security cannot connect to the server" while trying to sign in or access a ...
How to Fix Cloudflare Error 525: SSL Handshake Failed
When you see Cloudflare error 525, it means the SSL handshake between Cloudflare and your origin ...