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 Defender Update Error 0x80070643

If you see error 0x80070643 when updating Windows Defender, it usually means the update failed to...

Fix Chrome Profile Startup Error: Permission Denied

When you start Chrome and get a 'permission denied' error related to your profile, it usually mea...

How to Fix Microsoft Teams High CPU Usage

If Microsoft Teams is using 50% or more of your CPU, you're not alone. This is a common complaint...

Fix Microsoft Teams Modern Authentication Failure

When Microsoft Teams shows 'We couldn't sign you in' or 'unable to authenticate with modern authe...

Docker Compose Env File Not Found: Troubleshooting Checklist