Hey! My OS X 10.9.2 crashed recently and since then I am unable to boot into the OS X partition. Since, I have Windows installed through Bootcamp, I can boot up into Windows. I can also access the files stored in the Mac partition, that means the HDD is not a problem, and its a problem with the OS X System Files; thus requiring a system repair. As I do not have a Recovery Partition installed and DVD drive is not working, I cannot go repair through that route. I installed Transmac and downloaded a Bootable DMG image of 10.9.2 Build (13C64) and restored the image in a 16GB pendrive. The problem here is that while the USB is read at startup, while loading there is a Prohibited sign coming up. So i figured there must be something wrong with the image I used for the restore. I downloaded another copy of OS X, this time a 10.9.1 (Mac App Store) version and restored the InstallESD.dmg on the USB through Transmac. This time the USB fails to show up even at boot time (when I press option key). There is no one with a Mac nearby with which I can troubleshoot, and no disc of SL or any other version. Getting the OS from torrents is my only source. PS: My USB is in GPT partition. Please help me out, I am trying to make this right since the past 4 days without any luck!!