Here is a easy way to shut down our pc rapidly. Usually we shut down pc going through the start menu. But in case of hurry , you can do that with just 2 keywords of your keyboard.
Just hold your “win” key(between ctrl and alt key ) and then press “U” key two times repeatedly. PC will be shut down rapid. No need to go to start menu.
During starting again, process is as usual. No extra or alternative way for starting from this shut down.