Which scan is effective between credential and non-credential

hi rapid7 users,
I am a fresher of using Rapid7 Scanning. Now I am concerning that between credential and non-credential which one is effectively since I attempted with non-credential there always failed.

Generally if you have authentication scans it will gather more information as you would be able to see more info from your End Point. You could also adjust the template as needed if its causing the scans to run longer. If you don’t run authenticated scans you would still yields some results but does not capture the full picture.