Hl 15 ac 123tx is the best windows laptop it has a 15 inch display runs on operating system windows 10 it has 4gb of ram and 1 terra bite of hard drive it has a cd and dvd reader and writer yes you can write anything in your dvd it has cortana support also. The service from hp customer care is ok not very bad or good. But the laptop is very easy to use and handle. But I buyed this from flipkart. Com at 39, 990 if you want you can buy this laptop thumbs up for this laptop. Very good product