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

Windows Defender Setup Checklist for New PC

When you set up a new PC, Windows Defender (now called Microsoft Defender Antivirus) is already a...

Fix Microsoft Store Token Expired Error 0x80070424

When you see error 0x80070424 in Microsoft Store, it usually means the authentication token has e...

Fix Git Clone Permission Denied (Publickey) but SSH Works

You try to git clone a repository and get a "Permission denied (publickey)" error, y...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

Fixing Cloudflare Tunnel DNS Errors: A Practical Guide

If you're seeing DNS errors when using Cloudflare Tunnel (cloudflared), the tunnel might be conne...

How to Fix Microsoft Store Stuck on Loading When Reinstalling Apps

You try to reinstall an app from the Microsoft Store, but it gets stuck on the loading screen. Th...