Hello y'all. I've read on the internet that unless your using Windows 8, Windows 8.1 and 7 OEM licenses are only for "system builders"/people building PCs to sell and are illegal for personal use such as if you build a PC. Is that true? Also, afterwards how do the system builders work with Microsoft and get them to understand they are selling the PC they built with the OEM license; that they are not building it for personal use? Not trying to do anything illegal, just want to know how.