Fix Windows Defender Missing After Update
After a Windows update, some users find that Windows Defender is missing from the system tray, Se...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender Connection Refused on Windows 10
When you see "connection refused" while using Windows Defender on Windows 10, it usually means th...
Fix 'Port Already in Use' Error in Windows 10 Command Prompt
When you try to start a local server or application and see Error: listen EADDRINUSE :::808...
Fix PowerShell Execution Policy Error on Startup
When you try to start PowerShell and see an error like 'PowerShell failed to start because of exe...
Fix Windows Update Error 0x8024401c Due to Network Issues
If you see error 0x8024401c when running Windows Update, it usually means your PC can't reach Mic...
How to Fix Task Scheduler Error 0x80070057 After Resetting Settings
After resetting Task Scheduler settings (for example, by deleting the Tasks registry...
Topic paths
Quick titles
Windows Update Failed: Backup Issues ChecklistHow to Get Microsoft Store Downloads Working AgainFix 'chrome' Command Not Found in Windows CMDBitLocker DNS Error: Unable to Contact Key Server FixWindows Defender Can't Reach Microsoft Server TroubleshootingOneDrive Proxy Sync Error FixHow to Fix Teams 502 Bad Gateway ErrorFix Port Already Allocated for Task Scheduler Service