Before you start the installation process, you’ll want to gather the following: - A PC running 64-bit Windows with at least a dual-core processor and 4GB of RAM. Mountain Lion is 64-bit, and thus requires your copy of Windows to be 64-bit. If you’re on a 32-bit version of Windows, you can install Snow Leopard instead (Google it as this instructable is for Mountain Lion not Snow Leopard). Note that your processor also needs to support VT-x. This list should help you find out whether yours does. - VirtualBox and the VirtualBox Extension Pack: VirtualBox is my favourite virtualisation tool for Windows, and it’s completely free. VirtualBox doesn’t officially support OS X, but it’s actually very easy to get up and running. You should download the main program and the Extension Pack, which will give you support for USB devices. - A hacked Mountain Lion disc image. Sadly, this won’t work with a vanilla Mountain Lion installer, so you’ll have to find a compatible hacked version. The hacking group Olarila has put a great installation ISO together, and you can find it by searching Google. If that doesn’t fit well with you, you can head over to the Mac App Store and buy a legit copy for yourself, so you can at least pirate with a clear conscience. - The HackBoot 1 and HackBoot 2 ISO files. Each one has it's own function which you'll know later. However, both will help you boot into the installation. - Mulitbeast 4, which will help you get audio and other things working correctly after installation. You’ll need to register for a free account over at Tonymacx86.com to download this. Make sure to download MultiBeast 4 — it’s labelled “Lion”, but for our purposes the Lion version works better than the Mountain Lion version.
Apple has announced the Mac OS Sierra as the next version of Mac system software. During its presentation that took place at the WWDC 2016 conference, the new macOS sierra was versioned as Mac OS X 10.12 and will be accessible as a free copy for all compatible Macs. The Mac OS 10.12 final comes with a lot of amazing features. Choose the type “Mac OS X” and version to “macOS 10.13 High Sierra (64-bit)” or “Mac OS X (64-bit)” then increase the memory size to minimum 4 GB (4096 MB). From the Hard Disk section select “Use an existing virtual hard disk file” and click on the small folder icon to browse the VMDK file.