Allow standby states (S1-S3) when sleeping (plugged in)

Supported on: At least Windows Vista

Registry

HKLM Software\Policies\Microsoft\Power\PowerSettings\abfc2519-3608-4c2a-94ea-171b0ed546ab

Value name: ACSettingIndex

Enabled: ACSettingIndex = 1

Disabled: ACSettingIndex = 0

Description

This policy setting manages whether or not Windows is allowed to use standby states when putting the computer in a sleep state. If you enable or do not configure this policy setting, Windows uses standby states to put the computer in a sleep state. If you disable this policy setting, standby states (S1-S3) are not allowed.