Since Windows 8, Microsoft has added a Lock Screen feature to Windows in addition to the Logon screen where you type the password. In Windows 10 also, the Lock Screen is an additional screen which is displayed with a fancy background and some useful information like clock and date. It appears before you can pick a user account to sign in. When you lock your computer, again you will see the Lock screen. When the PC is locked, the normal display off timeout value has no effect on it and you cannot specify the timeout value after which the screen will turn off while you are on the Lock screen. Turns out, there is a hidden registry setting for this and enabling it even turns it on in the Power Options control panel GUI - the same window where you specify other power related timeouts. Let me show you how.
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