Fix 'Security Module Not Found' in Windows Defender
If you see a message in Windows Security that says something like "Security module not found" or ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Security Dependency Conflict Troubleshooting Checklist
Windows Security can fail to start or update properly when a dependency—like a service, driver, o...
Fix Microsoft Store Stuck on Loading After Update
After a Windows update, you may find the Microsoft Store stuck on a loading screen, spinning endl...
Fix Windows Activation Blank Screen After Hardware Change
If you've recently swapped your motherboard, CPU, or other major hardware, you may hit a blank sc...
How to Fix Chrome Backup Not Working
If your Chrome browser backup isn't working, you're not alone. This usually shows up as a sync er...
How to Set Up Windows Activation on Ubuntu Dual Boot
If you installed Ubuntu alongside Windows and now see an activation warning, you're not alone. Wi...
Topic paths
Quick titles
How to Change Task Scheduler Log File Location via RegistryChrome Shortcut Not Opening? Try These FixesFix Windows Search 404 Not Found ErrorStarting Redis Server on Windows After InstallationPowerShell Port in Use Troubleshooting GuideWindows Terminal Port Already in Use: Find and Kill the ProcessTroubleshooting Outlook 404 Not Found in Windows 10How to Fix Windows Update Invalid Configuration Error