How to Allow an App Through Windows Defender Firewall
If an app can't connect to the internet or network, Windows Defender Firewall may be blocking it....
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search Indexing Error 0x80070005
When Windows Search indexing stops with error 0x80070005, it usually means the indexing service c...
Fix Windows Defender Performance Issues After Update
After a recent Windows update, you might notice Windows Defender (Microsoft Defender Antivirus) c...
Fix Microsoft Store 504 Error After Windows Update
After a Windows update, you might see a 504 error when opening Microsoft Store. This usually mean...
Windows Activation Path Not Found: Troubleshooting Guide
When you see 'Windows activation path not found' during activation, it usually means the licensin...
Fix Windows Security Service Failed to Start Error 0x80070422
You see the error "Windows Security service failed to start" with code 0x80070422. This usually m...
Topic paths
Quick titles
Docker Desktop Stuck on 'Starting'? Reset to Factory DefaultsFix Windows Access Denied: Reset Security PermissionsHow to Fix a File Locked by Windows Security in Windows 10Resolve Windows Store 0x80073cf9 Sync ErrorWindows Security Not Starting? Fix ChecklistWindows Activation Stuck? Try These FixesWindows Update Cleanup Access Denied Error SolutionsWindows 502 Bad Gateway Activation Troubleshooting