My notebook came with the initial setting/configuration done

I would ask fro some guidance from the more knowledgeable people here. My supposedly new notebook assus vivobook with Endelss OS came with the initial settings/configuration done and I suspect it was used before, eventhough it was sold as new. I would like to know if I can run diagnostics or where and how I could check if it was used before. It also has a male’s name in the properties of the user’s main folder, Which I also thought was really strange. Please advise.
Thank you.

If you feel you received a repackaged used machine you might try complaining and see if you could get a replacement.

However if you feel it is a fine laptop, but lacks a pristine new setup you can follow the directions found here which will remove any user accounts and data and reset Endless back to factory condition.