Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

How to Fix Error 0x80070643 When Windows Update Fails

Error 0x80070643 typically appears during Windows Update when the system cannot complete an updat...

Windows Defender Troubleshooting Checklist for Common Errors

Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background. But w...

Fix Windows Update 502 Bad Gateway Related to Proxy Settings

If you see a "502 Bad Gateway" error when running Windows Update, it often points to a problem wi...

Fix Microsoft Store Update Stuck at 0 Percent

You open Microsoft Store, see an update listed, and click Update. The progress bar shows 0% and s...

Fix 'Permission Denied' When Creating a Folder in Command Prompt

You type mkdir newfolder in Command Prompt and get "Access is denied"

Windows Store Error 0x80073cf9: Step-by-Step Fix Checklist
If you see error 0x80073cf9 when installing or updating apps from the Microsoft Store, it usually...