How to Change the Windows 11 Lock Screen Timeout

Step1: In the Windows taskbar, select the Start Menu and open Settings.


Step2: Select Power & battery.

Step3: Select Screen and sleep.


Step4: Choose a time next to When plugged in, turn off my screen after. If your device has a battery, you’ll see another option (not shown here) for controlling when the screen turns off while on battery power.

Credit : https://www.lifewire.com/change-screen-timeout-windows-11-6829006