Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Putty Connection Refused on Port 22

You try to connect to a remote server with Putty on port 22, but you get 'Connection refused'. Th...

How to Fix Command Prompt Not Opening as Administrator

You right-click Command Prompt and select "Run as administrator," but nothing happens, or it open...

Fix 'File Locked' or 'Permission Denied' During Windows Update

You try to install a Windows update, but it fails with a message like "File locked" or <...

Set Proxy in PowerShell for Script Execution

If your PowerShell scripts fail with connection errors when downloading modules or making web req...

Fix Docker Compose Port Already in Use on Host

When you run docker compose up and get an error like Error starting userland p...

Fix PowerShell 502 Bad Gateway Certificate Errors
When you run a PowerShell script that makes an HTTPS request, you might see a 502 Bad Gateway err...