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

Fix 'Windows Security Authentication Failed' for Domain Credentials

Fix Microsoft Teams Token Expired Sign-In Loop

You sign into Microsoft Teams, the window closes, and then it prompts you to sign in again. This ...

Fix Windows Activation Error 0x8007232B Slow Activation

You see error 0x8007232B during Windows activation, and the process is painfully slow or hangs. T...

Fix Jupyter Notebook Token Not Working on Ubuntu

You launch Jupyter Notebook on Ubuntu, but when you open the URL in your browser, the token promp...

Checklist for Fixing Windows Security Startup Failure

When Windows Security (formerly Windows Defender) fails to start at boot, you may see an error li...

Fix 'Command Not Found' and 'Permission Denied' Errors in Windows Command Prompt

You type a command in Command Prompt and get 'command' is not recognized or Ac...