Checklists for software errors, setup, and tool workflows.

Jupyter Kernel Stuck on Connecting: Practical Fixes

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

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

How to Fix Microsoft Store Proxy Error

You open Microsoft Store and see a message like ‘Proxy server isn’t working’ or ‘Check your proxy...

How to Fix Error 0x80070643 When Windows Update Fails

Error 0x80070643 typically appears during Windows Update when the system cannot complete an updat...

Fix Windows Update 504 Gateway Timeout on Windows 10

If you see a 504 Gateway Timeout error when running Windows Update on Windows 10, it usually mean...

Fix Windows Terminal Update Error Caused by Antivirus

You try to update Windows Terminal, but the update fails with an error. The common cause is antiv...