Trying to install Windows 8.1 on my iMac with Bootcamp and keep getting the same error message
The error message is: Windows cannot be installed to this hard disk space. Windows must be installed to a partition formatted as NTFS.
I'm not really sure what this means?
Computer details:
iMac 21.5 inch external optical drive
Yosemite operating system
Many Thanks
iMac, OS X Yosemite (10.10.3)