Hello, I have just bought a copy of Windows XP Home OEM from Amazon in France, for a computer I want to build for myself. However, the wording on the licence worries me. I'm afraid I might not be able to install it once my build is completed. The box says (my translation): "If the licence applies to a desktop operating system [which is the case] it also has to be pre-installed on the system's disk drive with the pre-installation OEM kit (OPK)". I've been to Microsofts' webpage, and it seems that OPK is a kit for builders-resellers who want to install trial versions of Office on their clients' PC's, on top of Windows. The label with the Product-ID mentions that my version is an "XP OEM". Amazon's bill says the same. However, another label on the box says "OEI" instead of "OEM". I'm not a reseller, and I'm building this PC for myself. Will I be able to install and use my copy of Windows? I hope I'm not supposed to buy this pre-installation kit in order to make Windows work -- which I would probably be unable to do, since I understand you need a reseller's contract with Microsoft to do that. I'm in France, but I understand Microsoft's licensing rules are the same in the UK and here. Any advice would be greatly appreciated.