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

Firefox Profile Missing Troubleshooting Checklist

When Firefox starts but shows none of your bookmarks, passwords, or extensions, the profile may b...

Fix Chrome Authentication Failed After Password Change

If you changed your Google Account password and now Chrome says "authentication failed" when tryi...

How to Fix Microsoft Teams Error 429 (Rate Limit)

You're working in Microsoft Teams and suddenly see error 429: “You have been rate limited. Please...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

How to Fix BitLocker Crashes After a Windows Update

If BitLocker starts crashing or showing errors right after a Windows update, you're not alone. Th...

Jupyter Kernel Connection Error: Causes and Fixes

You start a Jupyter notebook, try to run a cell, and see a message like "Kernel error" or "Connec...