Share 'How to remove linux and the grub loader.'

I downloaded Linux to see what all the fuss was about. So i downloaded it and then installed it. But for some reason it could't find my wireless internet so i could't use it. But i didn't really no how to uninstall it. I heard about removing a partition but i couldn't find how to delete it. So it was just sitting there on my computer. I was running low on memory so i had to remove it, and the gru…