Can anyone help me. I have bought a genuine version of XP home off ebay. (I have the Certificate of Authenticity sticker and its the hologrammed version)I loaded it on to my old computer and it gave me a few problems. (The comp was only just over the recommended spec for installation) Anyway I registered the disc with microsoft didnt't like what was happening on my old comp and so then I uninstalled and went back to my old Windows 98SE.
Anyway I am thinking of upgrading and notice that you can buy systems without an OS (It would seem pointless to have to buy another XP Home disc) and wondered because I have already installed and removed my XP home whether it will allow me to use it it in my new computer (when I get it) or is there something that will only allow you to install on one computer and prevent me from using it on an upgrade. (It is not a recovery disc with XP on it, as I have said it is a genuine CofA hologrammed XP disc)
There is a possibility you have been duped. It's not the installation that's a problem, it's the registering it with Microsoft. If it has already been registered, it will 'expire' after 30 days of installation.
It means that it can't be moved from computer to computer. Microsoft might be understanding about your situation and allow you to activate on another computer, but they don't have to.
OEM stands for Original Equipment Manufacture, the liscence dies with the machine. Eg My XP home is OEM, if my PC is unrepairable and I buy a new computer then I will also need a new liscensed copy of XP for it as the one I already have would have died with the original unrepairable computer.
However a retail copy can be moved about as many times as you want, provided it's only ever on one computer at a time!
Support for OEM comes from the place you bought it and retail version support comes from Microsoft themselves.