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

Fix Jupyter Notebook Token Not Working on Windows

When you start Jupyter Notebook (or JupyterLab) on Windows, it often opens a browser tab asking f...

How to Fix Windows Search Keeps Crashing

If Windows Search keeps crashing on your PC, you may see error messages, the search box becomes u...

Fix Task Scheduler 502 Bad Gateway After Setup

You set up a task in Windows Task Scheduler to hit a web endpoint, but it returns a 502 Bad Gatew...

Chrome Profile Missing After Logout: Recovery Steps

You log out of Chrome or your computer, and when you log back in, your profile is gone—no bookmar...

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

How to Free Up a Port in Command Prompt (Windows)

When an application fails to start because a port is already in use, you need to free that port. ...