uninstall Linux

I need some help fixing this computer. Iam about average on computer, no more ( a newbie here ) i didnt use any common sence. In my case if you dont how to do something. Dont do it, ask for help.

My info is this. I have Windows 10 alongside Linux Peppermint. I tried uninstalling Linux. I tried to reset my computer and even tried refresh. It wont do that. Heres a screenshot.

My original computer OS when i first got this laptop, came with Windows 8 then 8.1 now 10 my goal is get 8.1
But i would like to get this mess fixed first. ( i made the mess ).

I have did alot of research on this. What i hear and see most, insert CD or USB media. I got no type of media with this computer, i dont have a CD/DVD drive.
Thanks Chuck

Hey,

I think that doing a clean install is the easiest way, since you can format the whole disk and then install Windows. Normally Linux makes his own part of a partition what you can delete, but it seems not that it's there.

You don't need an DVD to install Windows 8.1, an bootable USB will also work.

Iam sorry i hate to ask dumb questions. Do you mean by clean install, buy my choice of Windows which is 8.1 i take the way i got this PC messed up now, probably isnt worth trying to fix. Am i right so far? Thanks Chuck

The screenshot you posted doesn't show any Linux on it but does show recovery partitions which should restore your PC but you seem to have three recovery partitions what did it come with?