If you’re using Install Mac OS X Lion Application (downloaded via App Store), make sure its available in Applications folder. Navigate to Format tab and choose Mac OS Extended (Journaled) and Apply, then Partition.Click Options, select Master Boot Record and hit Ok.Select your USB drive on left and click Partition tab on the right.On a Mac OS X, insert blank 8gb usb drive, Open Disk Utility (Applications > Utilities).How to Install OS X Lion 10.7.2 on PC using USB
Update: We’re trying to make this OS X Lion guide compatible with OS X Lion 10.7.3 Update. You can easily pirate an OS, but we recommend you buy OS X Lion, that ways your hackintosh becomes semi-legal. You can borrow your friend’s Macbook or even do it via any hackintosh.