Checklists for software errors, setup, and tool workflows.

Windows Security App Won't Open in Safe Mode: Fixes

If you’re in Safe Mode and the Windows Security app refuses to open—showing a blank window, crash...

Fix VS Code Git Authentication Failed with Two-Factor Auth

When you have two-factor authentication (2FA) enabled on your Git service (GitHub, GitLab, Bitbuc...

Setup Cloudflare Origin Certificate for Nginx

If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Fix Missing Taskbar Icons in Windows Notification Area

You look down at the notification area (system tray) and an icon you rely on—like volume, network...

How to Fix Git Merge Unrelated Histories Error

You run git pull or git merge and get:

fatal: refusing to...