Windows 8.1 installation (OEM) to a computer that already has Windows

easyTM

Honorable
Feb 4, 2014
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10,510
Hi,

I built my PC about a moth ago and then I didn't had enough money to purchase a new copy of Windows for my build. So I decided to go with my old Winds 7 full copy. However now I would like to install Windows 8 or 8.1. So can I just go and get Windows 8 OEM copy and install it on a computer that has Windows 7 on it?

Also when I order OEM Windows versions, I heard you have to get a computer or get the parts before you can purchase an OEM version. So is this just a rumor or is it true?

Thank you.