So I am going down that route again. I have to run an app that requires windows Since wine apps don't work I will resort to Bootcamp. First try: I had a mba haswell i5/4/256, an iso of win7pro 64bit, an 8gb thumb drive and 1tb external ready. The thumb drive took forever to mount so I took the external. After the iso was mounted and windows software downloaded the macbook rebooted, sound, blank screen ...? I took out the external, switched off and on --> no bootable drive. So I had to boot into recovery and select the right startup disk I repeated the above three times.- What exactly is supposed to happen when bootcamp assistant reboots? so now i am downloading an iso of win8pro and give that a try. what am i missing here? I would really appreciate some advice.