Before updating to lion
It's preferred that you use a completely empty hard drive for this, but if your computer already has Windows installed on your hard drive, be sure to create an appropriate hard disk partition for OS X Mountain Lion beforehand (by following Step 1 of my guide to MBR partitions) (will be posted soon).- i Atkos ML2 (Free): i Atkos is by far the most popular distro of OS X Mountain Lion.If you're interested in running Mac OS X, but you don't want to pay ridiculous prices for a normal Mac, then a Hackintosh just might be for you.In this guide, I'll show you how to install Mountain Lion on your PC with the i Atkos distro.Thanks to Mac Breaker for providing the original instructions.- An existing Windows computer/Mac/Hackintosh: This is the computer where you will download and set up i Atkos. If you're using a Windows computer, it needs to have a DVD/Bluray burner (just about every DVD/Bluray drive nowadays can act as a burner, too).- A Hackintosh-compatible computer with 10 GB of free space: This is the computer where you will install OS X Mountain Lion.You will need to erase all of the files on your USB drive beforehand, so make sure to back up its contents first.
If you really want to use a USB drive from Windows, install Mountain Lion on a virtual machine (a newer guide for this will be posted soon) and set up an i Atkos USB drive on there instead.
I won't go into details, but you can download it from just about any bittorrent website by using a bittorent client (it's about 5 GB in size).
The standard method of installing Mountain Lion on a PC requires you to modify a retail copy of OS X Mountain Lion with Unibeast, but i Atkos already does all of this for you.
Distros are pirated copies of Mac OS X that have been modified to work with a PC.
If you don't have any qualms with the legal issues regarding distros, they're actually the most convenient way to set up a Hackintosh.