Knowledge base for software setup, errors, and daily tool work.

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....

How to Fix systemd Service Restarting Repeatedly Error

How to Fix Remote Desktop Protocol Version Mismatch

You try to connect to a remote PC and get an error like “This computer can’t connect to the remot...

Fix Microsoft Teams Camera Not Working After Update

After a Microsoft Teams update, your camera may stop working. Common symptoms: a black screen, a ...

Windows Terminal DNS Error Troubleshooting Checklist

If you're seeing DNS errors in Windows Terminal—like Name or service not known in WS...

Stop Command Prompt High CPU Usage When Idle

You open Task Manager and see Command Prompt (cmd.exe) using 20-40% CPU, even though no windows a...