Checklists for software errors, setup, and tool workflows.

Fix Chrome Crash on Startup Due to Corrupt User Profile

If Chrome crashes immediately when you open it, or shows a warning that your profile may be corru...

Fix Windows Update Service Not Running Due to Group Policy

If Windows Update shows the service is not running and you suspect Group Policy, the problem is o...

How to Fix Cloudflare 521 Error with Firewall Settings

If you see a 521 Web Server Is Down error when visiting your site through Cloudf...

Windows 11 Update Stuck at 0%? Run System File Checker First

If your Windows 11 update is stuck at 0% for more than 30 minutes, corrupted system files are a c...

Fix Windows Update Error 0x80070002

Windows Update error 0x80070002 usually appears during an update attempt. The system may stall at...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...