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

Policy ID: AllowStandbyStatesAC_2
Scope: Computer Configuration
Supported on: At least Windows Vista
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: System › Power Management › Sleep Settings

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.

ComputerHKEY_LOCAL_MACHINE