A:AnswerKeyboard does not have a specific button for this action. All you do is click on the power button on the bottom left side of screen and pick sleep.
A:AnswerWindows 10 is installed. There is no windows package on computer and a disk does not come with it either. A warranty can be purchased for 3 years but it is not included in the price of the computer and you can take the computer to Best Buy geek squad for service.