Update for Mavericks 10.9.2 and install Dual boot for HD4000 with-without MAC –  These days, most of new laptops are installed with Intel 3rd generation i’s series – Lenovo came out with a low budget $448 G580 i5 3230M with 4GB Ram and 500GB of hard drive. We install Mac OS X Mountain Lion 10.8.3 […]