I have a huge Windows Desktop in which the hard disk has failed. Fortunately I have a backup of this PC. This PC was running Windows XP I am putting a second hard drive in my 2011 Mac Mini. Is it possible to use Windows XP with bootcamp. My Windows Desktop had two hard disks and one was running Windows XP and the other was running Windows 7. I want to get rid of the huge Windows Desktop as it occupies too much space. I would like to know that apart from El Kapitan if I can also have Windows XP and Windows 7 in this small form factor Mac Mini. If this is possible then in a small and elegant machine I can have all my previous applications and data.