Fix 'Windows Defender Firewall Has Blocked' Error
You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Remote Desktop Permission Denied Error 0x80004005
When you try to connect to a remote desktop and see "An internal error has occurred"
How to Fix High Memory Usage by cmd.exe
If you notice that cmd.exe is using a lot of memory—sometimes hundreds of megabytes—it's usually ...
How to Fix Task Scheduler Module Not Found Error
When you open Task Scheduler and see a 'module not found' error, it usually means a scheduled tas...
Fix Windows Security Cannot Connect to the App
When you see 'Windows Security cannot connect to the app' while trying to open Windows Security o...
How to Fix OneDrive 502 Bad Gateway Error
If you see a 502 Bad Gateway error when trying to access OneDrive, it usually means the server re...
Topic paths
Quick titles
How to Run Microsoft Store CommandsWindows Activation Token Expired: Troubleshooting StepsBoost Game FPS by Adding Defender ExclusionsFix Windows Activation Rate Limit Error 0xC004C003OneDrive Not Starting Automatically? Fix ItMac to Windows Remote Desktop Setup GuideBitLocker Update Troubleshooting Windows 11How to Fix Microsoft Store Timeout After Windows Update