hi all I hope you can help I was running windows 10 on my mac via bootcamp then all of a sudden while in windows it crashed on a reboot my osx got wiped al;l that's left is a fresh install of windows any help would be welcomed thanks
iMac, OS X El Capitan (10.11.3)
1. If Windows is bootable, please install https://sourceforge.net/projects/gptfdisk/ and post a screen shot similar to the following.
2. If neither OS works, use How to install OS X on an external drive connected to your Mac - Apple Support to install OS X on an external disk. Upgrade the OS X version to match the current version on the internal disk and then we can diagnose further.
bootcamp
