Checklists for software errors, setup, and tool workflows.

Fix Explorer.exe Keeps Restarting in Windows 10

If your File Explorer (explorer.exe) keeps restarting on Windows 10, you'll see the taskbar a...

How to Recover from a Detached HEAD in Git After a Rebase

You're in the middle of a rebase, you see a message like 'detached HEAD', and you'...

Fix Windows Update Error 0x800f081f Stuck or Failing

You see error 0x800f081f when Windows Update gets stuck or fails to install an update. This usual...

Fixing Nginx Upstream Connection Refused on Port 443

You see "upstream connection refused" in your Nginx error log when proxying requests to p...

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps

You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....

Fix Git 'index.lock' File Exists Error on Linux

When working with Git on Linux, you might see an error like:

fatal: Unable to creat...