Policy
Turn Off the hard disk (on battery)
This policy setting specifies the period of inactivity before Windows turns off the hard disk. If you enable this policy setting, you must provide a value, in seconds, indicating how much idle time should elapse before Windows turns off the hard disk. If you disable or do not configure this policy setting, users can see and change this setting.
Pack Microsoft Windows
Category System / Power Management / Hard Disk Settings
Policy ID
dc31690461ba Internal name
DiskDCPowerDownTimeOut_2 Registry
Copy registry mappings
HKLM\Software\Policies\Microsoft\Power\PowerSettings\6738E2C4-E8A5-4A42-B16A-E040E769756E\DCSettingIndexPolicy notes
This policy setting specifies the period of inactivity before Windows turns off the hard disk. If you enable this policy setting, you must provide a value, in seconds, indicating how much idle time should elapse before Windows turns off the hard disk. If you disable or do not configure this policy setting, users can see and change this setting.