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

Jupyter Kernel Not Starting in VS Code: Quick Fixes

You open a Jupyter notebook in VS Code, try to run a cell, and the kernel either hangs on "Starti...

Fix Command Prompt Can't Connect to Internet in Windows 10

You open Command Prompt, type ping google.com or curl, and get an error...

Fix Windows Defender Error 502 Bad Gateway

You open Windows Security and see 'Error 502 – Bad Gateway.' This usually means Windows Defender ...

Fix 504 Gateway Timeout in Windows Security After Update

If you see a 504 Gateway Timeout error when opening Windows Security after a recent update, it us...

How to Fix Microsoft Store Error 0x80072efd

When you see error 0x80072efd in Microsoft Store, it usually means the app can't reach its server...

Fix BitLocker Connection Timeout and Permission Denied Errors