USB has Windows 7 iso file and this is what happens when asked for device drivers.....I had non so machine was shut down.
It is now in the black screen at boot up and message is
no bootable device
MacBook Air, iOS 7.0.4, installing windows 7 using bootcamp
The drivers are not on the Windows iso drive. You made the usb thumb drive containing the drivers (Windows Support software when you ran Boot Camp Assistant. After installing Windows, remove the thumb drive containing Windows and boot into Windows on your hard drive. Insert the thumb drive containing the Windows Support software and install the Windows Support software.
Read the Boot Camp installation guide.
no bootable device
