Checklists for software errors, setup, and tool workflows.

Fix Windows Security App Access Denied Error

When you open Windows Security (formerly Windows Defender Security Center) and see an 'Access...

How to Fix Cloudflare Error 521: Web Server Is Down

Cloudflare error 521 means your origin web server is refusing the connection from Cloudflare'...

How to Fix VS Code Source Control Not Detecting Changes

You open VS Code, edit a file, and expect to see it in the Source Control view. But the panel sta...

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

This error usually means Windows Update doesn't have pe...

Fix Git 'index.lock' File Exists Error in SourceTree

If you use SourceTree and see an error message like fatal: Unable to create 'path/to/.g...