It is wise step to set ‘Power’ button to lock your screen of your Android 4.4.4 KitKat phone, instantly, by just one press of it. It would be much easier to lock screen of your phone, instantly, than waiting for a while to lock, automatically. It would also help you to save, unnecessary, battery drain and to avoid pressing of any app, accidently, when the screen is not locked and the phone is put in your pocket or purse.
Setting your phone for the purpose is easier when the instructions are followed:
Command Line: Settings > Screen lock – PERSONLIZATION > Screen security – GENERAL > Power buttons instantly locks.
Now, when you will press the ‘Power’ button, it will lock the screen of your phone, instantly.