Hi everybody, I am writing this in a hope that someone here can help me, as Microsoft helpdesk and OEM reseller are just jer.ing me around. So, this is how it begins... I bought part to assemble my home PC, and on g2play I bought cheap win 8.1 pro OEM x32/x64 license key. After PC assembly, from win media creation I downloaded win 8.1 pro 64bit not knowing that it is retail ver of win. So as expected, my key was rejected... then I contacted helpdesk M$, there I got answer that I have "Genuine and Valid" product key, but I need OEM dvd. Then I contacted my reseller, but wit zero response... So, I googled a little, did a trick with ei.cfg, then I was able to install win 8.1 pro from iso I downloaded. Somehow I hoped that win will activate after install, but no luck. So, I am stuck now, I don`t have OEM dvd, I don`t know what vendor is my OEM key... what can I do? Thanks in advance!