I am using this laptop since 2 year this is not very well and face very huge problems like hanging, virus, etc. this laptop is not too secure for using internet user. it is works on Windows 8.1 version and I got few updates. camera is average it is 2 MP. RAM is 4 GB it is very good for playing heavy games. sound is pretty good it is Dolby Audio. comfortable design and very heavy. battery is average it is works 4 hours. looks and design is pretty good. service and support is good. my suggestion is if you planning to buy this laptop please don’t buy. it is best but I don’t like it. I pay for this laptop is 30, 000.