Fix Windows Defender Not Starting After Update
After a Windows update, you might see that Windows Defender (now called Microsoft Defender Antivi...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Chrome Profile Authentication Failed Permission Denied
If you see 'Profile authentication failed: Permission denied' when launching Chrome, the browser ...
Fix 'Port Already Allocated' Error in Microsoft Teams on Mac
If you see an error message saying a port is already allocated when launching Microsoft Teams on ...
Jupyter Kernel Not Starting Python Environment: Fixes
You launch a Jupyter notebook, select your Python environment kernel, and the notebook stays stuc...
Fix Windows Terminal 404 Not Found Error in VS Code
If you see a '404 not found' error when trying to open Windows Terminal from Visual Studio Code, ...
How to Fix Windows Defender Error 0x80070422
When you see error 0x80070422 in Windows Defender, the Security Center service or Windows Update ...
Topic paths
Quick titles
Resolve Microsoft Store Proxy Error with These Setup StepsUnblock Chrome Extensions Blocked by AdministratorChrome Port Already Allocated: Quick Fix GuideWindows Security Settings Access Denied: Quick FixesFix Microsoft Store Stuck on Loading After UpdateWindows Update 0x8024402c SolutionFix Task Scheduler Permission Denied ErrorTroubleshoot OneDrive 0x8004de40 DNS Problem