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 listHow to Fix OBS Black Screen on Mac
If you see a black screen in OBS when trying to capture your display or a specific window on Mac,...
Fix PowerShell Permission Denied When Running Script
You try to run a PowerShell script and get a 'permission denied' error. This usually happens beca...
Fix Chrome ERR_TUNNEL_CONNECTION_FAILED on Windows 10
If you see ERR_TUNNEL_CONNECTION_FAILED in Chrome while browsing on Windows 10, ...
Fix Windows Update Service Stuck on Starting
You open Services.msc, see the Windows Update service status as 'Starting', and it never changes....
Check If Your Windows License Is Retail or OEM
If you're troubleshooting activation issues or planning to transfer Windows to a new computer, kn...
Topic paths
Quick titles
Fix Outlook Offline Installer Error 0x80070002Troubleshoot Windows Update Not Syncing with ServerHow to Fix Certbot Certificate Renewal FailuresHow to Fix Token Expired in Azure CLI on WindowsFix Windows Terminal SSH Connection Refused ErrorFix Windows Search Version Mismatch Not Finding FilesFix Windows Update Invalid Configuration with SFC ScanHow to Resolve Task Scheduler Error 0x80070005