I am trying to install window 7 through usb in my Dell studio 1555 Laptop.Every time it get stuck at "setup is starting".I have already disabled all other boot options except usb.There is no floppy drive option. I have gone through more or less every post related to this problem ,but common solution that is to remove all the usb ,firewire etc attachment,does not work in my case as i am installing from usb. Please help as i have already tried it 5 6 times.