Checklists for software errors, setup, and tool workflows.

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How to Fix Windows Security 404 Not Found Error

If you see a '404 Not Found' error when opening Windows Security (formerly Windows Defender), the...

Fix Windows Update Pending Restart Not Showing Notification

You've installed Windows updates, but the usual restart notification in the system tray or Action...

Windows Defender Authentication Failed: Step-by-Step Checklist

You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...

Fix Command Prompt Crashing After Run as Administrator

If Command Prompt opens and immediately closes or freezes when you run it as administrator, you'r...

Fix npm install ENOENT package.json Setup Error

When you run npm install and see an ENOENT error referencing package.json

Chrome Browser Troubleshooting Checklist for Windows
If Chrome is crashing, running slowly, or displaying errors on Windows, start here. This checklis...