Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Nginx 404 Not Found Caused by Missing Index File

If you see a 404 Not Found error in your Nginx server and the requested path seems correct, the p...

Fix Windows Terminal Not Saving Settings After Update

After a Windows Terminal update, you may find that your custom settings—such as color schemes, fo...

Fix Windows Update Clean Up Tool Not Working

You run Disk Cleanup, check "Windows Update Cleanup", but nothing happens—or the option is missin...

Fix VSCode Debugger Not Attaching to Process

You've set breakpoints, started your application, and clicked the attach button in VSCode, but th...

Fix Windows Activation Command Error 0x80070002

When you try to activate Windows using the command line—for example, running slmgr /ato

Fix OneDrive Sync Fails with 504 Gateway Timeout Configuration
You start OneDrive sync and see a 504 Gateway Timeout error. This usually means the sync request ...