Press the Windows + R keys together, type regedit in the Run box and hit Enter to open the Registry Editor.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”.