For Mountain Lion and later, you more or less run the compatibility mode. To my understanding, OS X Lion was the last OS that you can run 32-bit kernels on, but most people seem to prefer Snow Leopard for this task due to better legacy support and how 10.6.8 Snow Leopard is an extremely reliable OS. Java versions 6 and below are listed in the Java Preferences.app located in the Applications > Utilities folder on your Mac. If you have Java 7 or later versions, you will see a Java icon under System Preferences. Quickly navigate to the pre-vmdk installer, then select the 'Mac OS X Lion.vmdk' with all options left as default, to press 'Finish' to complete the process. Under 'Hardware' tab, select 'Add.' to add into a new 'Hard Disk'.
Within OS X Utilities, choose Reinstall OS X. To get the latest Java from Oracle, you will need Mac OS X 10.7.3 and above. option to navigate to the 'Virtual Machine Settings' screen. Prepare a clean external drive (at least 10 GB of storage). One thing that I find annoying is the Home edition not supporting Remote Desktop which I use to access a headless Windows 10 WAMP server (a Mac mini). I may not be 100 correct in my understanding. The following method allows you to download Mac OS X Lion, Mountain Lion, and Mavericks. I must say Windows 10 is very nice and simple to use after decades of hating Windows with a passion I actually enjoy using it, albeit only on a Mac and my Mac Pro cylinder runs Steam and the likes of GTA V very well indeed. The easiest by far was a new Mac Pro cylinder which literally did everything unattended up to where the Windows welcome screen takes over.
All good fun but not one Mac I used was the same procedure.
This I cured by actually removing the partition Boot Camp had created using Terminal and allowing Windows to see a area of 'free space' which it then formatted correctly and went well after that. Each Mac seems to have different methodologies and some such as my Mac mini 2012 failed at the last stage due to an EFI issue according to the Windows installation setup. I've added Boot Camp and Windows 10 to a whole bunch of Macs ranging in age I would add that a MacBook Pro 2010 cannot use an iso insisting on using an optical disk.