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

Fix Windows Search 404 Not Found After Update

After a Windows update, you might click the search bar or a search result and get a blank page or...

Fix 'Windows Security Authentication Failed' for Domain Credentials

Jupyter Kernel Not Starting: Quick Fixes

You open a notebook, try to run a cell, and the kernel dies or never connects. This is a common J...

How to Fix Windows Terminal Proxy Issues

If Windows Terminal fails to connect through a proxy, you'll see errors like connection timeouts ...

Fix Windows Defender Update Error 0x80070490 on Windows 11

If you see error 0x80070490 when trying to update Windows Defender on Windows 11, it usually mean...

Fix PowerShell Stuck on Startup in Windows 10

If PowerShell appears to hang or become unresponsive every time it starts on Windows 10, the issu...