Windows 7 not starting when partition is finished.
I'm using a Macbook pro 15-inch 2011 using OSX yosemite trying to partition windows 7 ( 64-bit ). Whenever I try to partition my hardrive via book camp assistant and the partition part is successful but windows will not start when my mac restarts. I'm using an external cd drive which works. Its reading the disk but it windows simply won't start and I'll be stuck looking at a blank screen with a type symbol on a black screen similar to what you will find in any windows os. Please help.
MacBook Pro, OS X Yosemite (10.10.3)