Knowledge base for software setup, errors, and daily tool work.

Nginx 502 Bad Gateway: Troubleshooting Checklist

If you're seeing a 502 Bad Gateway from nginx, it usually means nginx can't reach the upstream se...

Checklist for PowerShell Command Not Found Issues

You type a command in PowerShell and get "not recognized" or "not found." It's a common frustrati...

Check Which Process Locked a File Using PowerShell

When you try to delete, move, or rename a file and get an error like "File in use" or "Access den...

Fix Windows Security Authentication Error 0x80070035

How to Fix Chrome Profile Update Error Not Working

When Chrome shows a profile update error and won't update, it can stop you from getting security ...

Windows Update Cleanup Tool Not Removing Files: Fixes

You run Disk Cleanup, check "Windows Update Cleanup", and it seems to work—but the disk space doe...