I was impressed at first, needed to by a Windows based laptop to run a certain program I need for my business. Tried to turn it on today and nothing, power adapter cable plugged in, dead. So Amazon is great and they are sending me another one asap. I hope this is just one of those things that this ASUS was defective. I have built many computers in the past using ASUS motherboards and they were bullet proof. This lasted 4 days!!!