I have a Compaq C752TU Laptop (purchased in 2008, Specs are C2D T5450, 1.66 GHz, 2 GB RAM, 160 GB HDD, Intel GMA 3100 Gfx). It came with Vista Basic (which was crappy) inbuilt, which I upgraded to Vista Ultimate by a HP OEM disc that I got my hands on from my one of my pals in HP...