Allow applications to prevent automatic sleep (on battery)

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKLM Software\Policies\Microsoft\Power\PowerSettings\A4B195F5-8225-47D8-8012-9D41369786E2

Value name: DCSettingIndex

Enabled: DCSettingIndex = 1

Disabled: DCSettingIndex = 0

Description

This policy setting allows applications and services to prevent automatic sleep. If you enable this policy setting, any application, service, or device driver prevents Windows from automatically transitioning to sleep after a period of user inactivity. If you disable or do not configure this policy setting, applications, services, or drivers do not prevent Windows from automatically transitioning to sleep. Only user input is used to determine if Windows should automatically sleep.