Checklists for software errors, setup, and tool workflows.

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Latest checklists

Fix Windows 11 Installation Assistant Stuck at 99%

Fix Windows 11 Installation Assistant Stuck at 99%

You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...

Fixing Nginx 502 Bad Gateway in Docker Networks

Fixing Nginx 502 Bad Gateway in Docker Networks

You have an Nginx container proxying requests to another container (like a PHP-FPM or Node app), ...

Fix Cloudflare Origin Certificate Mismatch Errors

Fix Cloudflare Origin Certificate Mismatch Errors

If you see 'Origin Certificate Mismatch' in Cloudflare or browser warnings, it usually me...

Fix 'Permission Denied' When Installing Python Packages Without sudo

Fix 'Permission Denied' When Installing Python Packages Without sudo

If you see "Permission denied" when running pip install, you're not alon...

Git Merge Unrelated Histories: When and How to Use --allow-unrelated-histories

Git Merge Unrelated Histories: When and How to Use --allow-unrelated-histories

You try to merge two branches and get fatal: refusing to merge unrelated histories. ...

How to Enable Windows Defender Real-Time Protection via Group Policy

How to Enable Windows Defender Real-Time Protection via Group Policy

If Windows Defender real-time protection is turned off and grayed out, it's often because a G...