A browser-based guided diagnostic tool aimed for help desk technicians, but can be useful for anyone. Step through branching questions to find the root cause of common IT issues, comes with a built-in ticket submission form. Take every advice here with caution as I am not a professional. Do your own research, especially with sudo commands as they can disable key features. Thank you!
Single HTML file. No installs. No dependencies. Just open and go.
Just open troubleshooting-decision-tree.html in any browser. No setup required.