Fix 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 ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listSync Windows Terminal Settings Between Computers
If you use Windows Terminal on multiple computers, you've likely noticed that each machine keeps ...
Microsoft Teams Network Error Checklist: Fix Connectivity Issues
You're in a meeting or trying to send a message, and Teams shows a network error. The app might s...
How to Fix BitLocker High CPU Usage on Systems Without TPM
If you're running BitLocker on a system without a Trusted Platform Module (TPM), you may notice h...
Fix Windows Terminal WSL Connection Issues
If Windows Terminal shows an error or a blank screen when launching a WSL profile, the connection...
How to Fix Windows Activation Not Working on Ubuntu
If you're running Windows on a machine that also has Ubuntu, you may see an activation error. Thi...
Topic paths
Quick titles
Troubleshooting OneDrive Error 0x80070194 in Windows 11Troubleshoot NVM Command Missing on WindowsWindows Defender Real-Time Protection Rate Limit Error FixOneDrive Setup Connection Refused: How to FixFix Windows Activation Path Not Found After Motherboard ChangeWindows Update Checklist After Clean InstallHow to Fix 'Outlook File Locked in Use by Another Process'How to Resolve Windows Search Dependency Conflicts