Turn Off the hard disk (plugged in)

Policy ID: DiskACPowerDownTimeOut_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 › Hard Disk Settings

Description

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.

Options

Turn Off the Hard Disk (seconds):

Registry

ComputerHKEY_LOCAL_MACHINE

HKLM\Software\Policies\Microsoft\Power\PowerSettings\6738E2C4-E8A5-4A42-B16A-E040E769756E View registry values

ACSettingIndexREG_DWORD

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View all policies in this category (2)