Problem Installing Vista - 'valid System Volume' ??

[MSantana]

Hey guys,So I have been trying to install Vista on my PC using my Iphone as a flash drive and booting the setup from there. Everything works fine until I come to the window where you have to choose which partition to install to, my options are either:DISK 0 PARTITION 2 Total Size: 35.1gb Free Space: 35.0gb (LOGICAL) or
DISK 0 PARTITION 3 Total Size: 35.6gb Free Space: 35.5gb (PRIMARY)Selecting either one of these partitions and clicking next causes a pop up saying 'Windows could not determine if this computer contains a valid system volume' then the setup fails!I have googled this but can only find suggestions to take out the USB or change boot priority in BIOS. I cannot do this without my Iphone/USB being plugged in as this is where windows boots from.Does anybody have any idea's how I can work around this as i need to get my PC back up and running ASAP!Thanks

[PCS]

You can change your BIOS settings without anything attached to the computer. Most of the time it's F2, or the DEL key right after you power the computer on, just keep tapping them until you hit the BIOS screen. You would need the VISTA image on your Iphone, not sure you can acctually do that, thou I have never tried from an Iphone.