Locking windows device quickly

Sometimes when we are working on our windows device and we have to go somewhere for some or the other work then we either put the device on sleep or shut it down. But when we try to put it on sleep, it takes a bit of time. Even though we use Alt + F4, as after that we also have to use arrow keys and then press Enter. There is a simpler way to do so by using the shortcut key combination: 

Windows Key + L 


               

This shortcut key combination at first locks your device and after some time the device goes to sleep.


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