I hope this is the right section for this forum. Anyway I building a new comp. I have XP installed on my HD from my old comp and planning on switching it to the new comp. It's going to be different mobo and processor. Well anyway I was wondering after i get it built can install the hd with xp already on it and Xp will detect the new comp or do I have to clear my HD and install XP agian. All I have is a backup disk from the company that I got my old comp from. I dont want to buy xp again if you know what I mean. How can I do this without buying Xp again if there is a way. Any help on how I can install the HD with Xp already on it will be helpful. Thanks