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

Jupyter Kernel Stuck on Connecting: Practical Fixes

You launch a notebook, but the kernel indicator stays gray or shows “connecting” for minutes. Thi...

Fix Microsoft Teams Token Expired Not Working

If you see "token expired" in Microsoft Teams and the app stops working, it usually means your au...

Firefox Not Responding? Try Safe Mode Troubleshooting Steps

If Firefox stops responding—freezing, crashing, or refusing to load pages—it's often due to a con...

Fix VSCode Remote SSH Connection Timeout Error

When using VSCode's Remote SSH extension, a connection timeout error (often 'Could not establish ...

Fix Windows Activation Command Error 0x80070002