Dear Friends, i have non-working MacBook Pro and during the Internet Recovery it always giving error. Now i have downloaded several Yosemite.dmg files from different sources and prepared bootable usb drive and DVD drive using TransMac, but unfortunate did not get any success in installing Yosemite. Now i have download untouched Yosemite InstallESD.dmg file. Now how to install or prepare a USB or DVD drive without a working MacBook. Can anybody suggest me what i am doing wrong? and How to make my mac book running again. I have a window PC on the other hand. Please help, really stuck from almost a month now, no solution yet.