Closed the lid overnight without going through the process of "shut down". Laptop's bottom IS over-heat and so hot in the morning, open the lid and can not turn on!I has a Zenbook UX31E 13.3" (Windows 7) for seven years. it is still working fine and think it is time to have Windows 10 since Windows 7 is not supported anymore.Too bad this 2-in-1 is not what I expected and have to return to Amazon.