Dictates whether or not Windows is allowed to use standby states when sleeping the computer. The recommended state for this setting is: Disabled. Rationale: System sleep states (S1-S3) keep power to the RAM which may contain secrets, such as the BitLocker volume encryption key. An attacker finding a computer in sleep states (S1-S3) could directly attack the memory of the computer and gain access to the secrets through techniques such as RAM reminisce and direct memory access (DMA). Impact: Users will not be able to use Sleep (S3) while on battery, which resumes faster than Hibernation (S4).
To establish the recommended configuration, set the following Device Configuration Policy to Disabled: To access the Device Configuration Policy from the Intune Home page: Click Devices Click Configuration profiles Click Create profile Select the platform (Windows 10 and later) Select the profile (Administrative Templates) Click Create Enter a Name Click Next Configure the following Setting Path: Computer Configuration/System/Power Management/Sleep Settings Setting Name: Allow standby states (S1-S3) when sleeping (on battery) Configuration: Disabled Select OK Continue through the Wizard to complete the creation of the profile (profile assignments, applicability etc.) Note: More than one configuration setting from each of the Configuration profiles (ex: Administrative Templates, Custom etc.) can be added to each Device Configuration Policy. Default Value: Enabled. (Windows uses standby states to put the computer in a sleep state.)