Vista Home Premium, I power it on & no matter the choice(s), it still will not go to the desk top. I asked the owner when she last had it on & she told me about a week ago. First thing I see is the Gateway screen with Boot menu F 10 & BIOS Settings F2. Next screen shows Windows Boot Manager with 20 seconds to choose options. One option says Windows Vista Home Premium (recovered) Windows Error recovery is next screen & so on.