In the right pane, double-click on the DWORD Attributes.
How to Fix: Windows 10 Keeps Going to Sleep After 2 Minutes To fix such sleep mode problem, you have to tweak a hidden system setting in the Power Options called “System unattended sleep timeout”.
Windows 10 keeps going to sleep after approximately 1-2 minutes idle? This problem may happen even if an affected user changes all the display and sleep settings to “Never”.