How can I boot to Windows on my Mac? I have a MacBook Pro that I installed Windows 8 on via Boot Camp. I've managed to boot to it, before, but since then I've made two new partitions on the disk, and I'm afraid it's messed things up since I can't boot to Windows anymore.

Now when I select which partition to boot to, I can only see my Mac OSX, A backup partition, and the Recovery partition. The Windows partition does appear in Disk Utility though.

What have I done wrong?
Try going to System Preferences...

There in the System row go to Statup Disk

And select the Windows partition.

Restart...



During Startup try holding the option key. You should be able to select the partition you will boot from.