Hi all reader of this great topic, for me it's working find on USB hard drive 80 Go with this great soft : WinSetupFromUSB i can install xp pro or home edition but... in part 2 step 7 their is a command XP2003.cmd and this doesn't work for windows 7 or server 2k8 if somebody got any idea it was great and for wait i'm going on google to find some answer... thank's a lot again for this topic. Vad