hello
i have also this laptop F series sony vaio laptop but its not working fine it stuck again and agian its going to direct restart by itself and if iam download some thing so its voices change if songs is played.and change grafic pixcle i give a advices or my bad experinces about sony vaio company so please do research first about your laptop then buy sony vaio i don,nt know what happen with sony company its loos his repotation
thanks