Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you run pip install somepackage and get ERROR: Could not find a version t...

How to Fix Windows Defender Error 0x800704ec
When you see error 0x800704ec in Windows Defender (now called Microsoft Defender Antivirus), it u...

How to Fix PowerShell Blank Screen on Startup
When PowerShell opens to a blank screen with no prompt or output, the shell is usually loading a ...

Fix PowerShell 502 Bad Gateway with Curl
If you're seeing a 502 Bad Gateway error when running curl commands in PowerShell, it usually mea...

BitLocker Command Not Found: Recovery Checklist
When you run a BitLocker command in Command Prompt or PowerShell and get 'command not found', it ...

Fix "7zip Cannot Open File as Archive" Permission Denied Error
You try to open an archive with 7-Zip and get: "Cannot open file as archive" fol...