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 Chrome ERR_CONNECTION_RESET Error

You're browsing and suddenly Chrome shows 'ERR_CONNECTION_RESET'. The page won't load, and refres...

Fix 'Microsoft Teams Command Not Found' on Mac

If you see zsh: command not found: teams when trying to launch Microsoft Teams from ...

Fix PuTTY Connection Refused After Server Restart

You restart your server, open PuTTY, and see "Connection refused". This is a com...

Fix Windows Update Failed to Start After Reboot

You’ve just restarted your PC after installing updates, but Windows Update won’t start. The updat...

Fix Git Token Expired Error in CMD: Step-by-Step