Bootcamp isn't recognizing that I have an installer disk in the superdrive
New to Bootcamp. Not sure what the problem is, but Bootcamp is not recognizing that the installer disk for Windows is in the drive. It keeps saying to install the disk and wait a few seconds for it to be recognized. When I do this. It doesn't recognize that my installed disk is present. I am using a complete Windows7 Professional ISO downloaded yesterday using my MSDN subscription. should I be installing the full ISO?
iMac, OS X Yosemite (10.10.3)