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

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

How to Fix Chrome Profile Module Not Found Error

When launching Chrome, you may encounter an error message saying 'Profile module not found' or 'E...

BitLocker High CPU Usage Caused by TPM: How to Fix

If your system is running slow and Task Manager shows high CPU usage from the System process or B...

How to Kill a Process Using a Port in Command Prompt

When you try to start a local server or application and see an error like "port already in use" o...

How to Fix Jupyter Notebook Token Authentication Error

When you start Jupyter Notebook, you might see a prompt asking for a token or password, or the br...

Command Prompt Troubleshooting Checklist for Windows

When Command Prompt stops working as expected—won't open, returns odd errors, or commands don't r...