I purchased this ultrabook year 2014 and it worked well until one day, few months after the warranty expired it just didn't boot!!!
I brought it to the technician but the only solution they have is to change the motherboard. OK, after less than 2 years its motherboard died!!! My old laptop worked for almost 6 years, and this dell ultrabook is just less than 2 years. Too disappointed!!! I spent so much money for nothing.