Fix OBS Black Screen with No Source Detected
If you're seeing a black screen in OBS and the message 'No source detected,' you're not alone. Th...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender 404 Not Found Error on Windows 10
You click to open Windows Defender Security Center and see a 404 page, or the Settings app shows ...
Fix Windows Defender Port Already Allocated Registry Error
When Windows Defender fails to start or update, you might see an error like 'port already allocat...
Enable Windows Defender After Disabling Third-Party Antivirus
If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...
Fix Windows Security Blank Screen: Step-by-Step Guide
You open Windows Security but see only a blank white or gray screen. The interface fails to load,...
How to Fix Windows Defender Not Opening
If Windows Defender won’t open—whether it crashes, shows a blank window, or does nothing when you...
Topic paths
Quick titles
Windows Update Stuck on Pending Install: How to Force ItFix Windows Defender Stuck in Login LoopFix Microsoft Store Error 0x80073cf3: Service UnavailableMongoDB Authentication Failed: Causes and FixesStep-by-Step Firefox Profile Refresh for CrashesTroubleshoot Windows Activation Error 0x800704cfTroubleshoot Microsoft Store Not Loading Windows 11Windows Security Version Mismatch Fix