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

How to Fix Microsoft Teams 504 Error Code

You're working in Microsoft Teams when suddenly it stops responding and shows a 504 error. This u...

Fix Antivirus Causing High CPU Usage in Command Prompt

If you notice high CPU usage in Task Manager under Command Prompt, your antivirus software may be...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Caused by Antivirus

When Chrome shows ERR_TUNNEL_CONNECTION_FAILED, it usually means a secure tunnel...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Windows Activation File Locked Registry Issue

You try to activate Windows, but get an error saying the activation file is locked or the registr...

Fix Windows Activation After Reset: No Internet Connection

After a Windows reset, you might see an activation error stating that Windows cannot connect to t...