Windows Reset Won't Work

Newish computer, recently upgraded to Windows 10.

Trying to do a PC Reset via the settings to wipe clean to sell it. When I click Reset in the Recovery menu of the Settings, I get a scrolling wheel for a second or so, and then nothing. It's as if something on the computer is blocking the computer from being reset.

When I try from the Advanced startup, it goes through a normal restart but doesn't do anything else.

I know that in the week that my mother had this computer, she managed to get a couple viruses from 3rd party search bars that she was prompted to download which were causing issues. I wonder if I didn't get it all cleaned off and there is something that won't let the computer reset?

Might take longer , but why not wipe clean and do a new complete reinstall , may well be faster than trying to fix in the long run.

I'd love that - can you link me to some instructions for that? Sorry for the noob question