I bought it in april 2009 with original windows vista home premium os.
It was amazing experience because I used so many laptops before this but never found all features in a single laptop as I always wanted to buy hp laptops.
But the major drawback that they should not recommend me windows vista because it makes your system to slow but now I dont want to invest my money anymore in purchasing other os to make it fast and pirated os is simply not acceptable for me as original os software is there.
Otherwise it is worth to buy it.