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

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...

Fix SSH Host Key Verification Failed in VS Code

When using VS Code's Remote SSH extension, you may see an error like "Host key verification faile...

Fixing PowerShell Remote Execution Failures on a Network

Fix Microsoft Teams Stuck on Loading Due to Network Firewall

You launch Microsoft Teams, but it gets stuck on the loading screen with no error message. One co...

How to Fix Windows Activation Error 0x803fa067

You might see error 0x803fa067 when trying to activate Windows. This often means Windows can't re...

Fix Windows Search Indexing Stuck Due to Rate Limiting

Windows Search indexing can stall or appear stuck, often due to built-in rate limits that throttl...