Bought a mini PC with pre installed Windows, how can I be sure its clean?

So before the 'get Linux'' crowd come in I know I know :P

So the mini PC was just what I was after but it came pre installed Windows 11, obviously who knows what could be hidden away on there, I'm just formatting the drive from a fresh Windows install, is that likely to get rid of anything cheeky that may have been there before?
Or is there something extra I can do?

can crowd drive formatting hidden linux privacy windows windows 11