If you have bought or going to buy this then think twice before you do so. The laptop is extremely slow. It delivers a very low performance when running simultaneous applications. There a sort of sound hat keeps on emanating from the laptop for hard disk read or write process.
Moreover the battery back up is very poor. The machine is being made without taking into considerations all of these things. The laptop runs very slow on win vista and would not be a idle decision to install this OS. XP would do as is consumes minimum system resources. The system sound and graphics are also very poor. For experiencing it just try playing counterstrike on this machine and you will never play CS again, not even on any other PC. Overall there are a lot of defects that can be highlighted in this machine. This is definately not a good choice.