|What Win 7 Upgrade package did you buy? You have Vista Home Premium which tells me that you need Windows 7 Home premium Upgrade disk. If you have any other upgrade disk then windows will tell you that it cannot complete the upgrade. The reason is simply that it is a downgrade and that does not happen in the world of Microsoft.|
Vista Home Premium=Windows 7 Home premium upgrade
Vista Business PC=Windows 7 Professional upgrade
Vista Ultimate=Windows 7 Ultimate upgrade
This should give you a guide as to which upgrade disk to purchase in relation to what you already have on your machine.