Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix PowerShell Port Already Allocated Error with Firewall

When you see a 'port already allocated' error in PowerShell while trying to set up a listener or ...

Fix 'npm command not found' in VS Code Terminal

If you see 'npm command not found' in the VS Code terminal, it usually means Node.js is not insta...

Fix Outlook Path Not Found in Profile

When Outlook reports 'path not found' in your profile, it usually means the program cannot locate...

Fix Windows Update Error 0x80070643 in Windows 11

You're trying to install a Windows 11 update, but it fails with error 0x80070643. This usually me...

Fix PostgreSQL Connection Refused Due to pg_hba.conf

When a client gets 'connection refused' from PostgreSQL, the first thing to check is the pg...

Windows Security Version Mismatch: Troubleshooting Checklist
If you see an error message saying Windows Security has a version mismatch, or the Security Cente...