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

How to Fix Windows Update High CPU Usage in Windows 10

If your Windows 10 PC slows down, fans spin up, and Task Manager shows high CPU usage from 'Windo...

Fix Windows Defender Threat Service Stopped & No Internet

You open Windows Security and see 'Threat service has stopped. Restart it now.' At the same time,...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

Fix Outlook Connection Refused Due to Firewall Settings

If Outlook suddenly shows a "connection refused" error when trying to send or receive email, the ...

Fix Microsoft Teams Grey Screen After Update

After a recent Microsoft Teams update, many users encounter a grey screen when launching the app....

MySQL Connection Refused on Port 3306: Causes and Fixes

If you're seeing "connection refused" when trying to connect to MySQL on port 3306, the MySQL ser...