Article ID: 298884 - Last Review: April 29, 2002 - Revision: 1.2

"It Is Now Safe to Turn the Machine Off" Message When You Try to Hibernate Your Computer

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This article was previously published under Q298884
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SYMPTOMS

When you attempt to hibernate a computer that is running Windows XP, you may receive the following message:
It is now safe to turn the machine off.
When you install Windows XP on a computer that is not in Advanced Configuration and Power Interface (ACPI) mode (by using a standard Hardware Abstraction Layer [HAL]) and you enable the hibernate option, the computer does not turn off (enter an S4 sleep state) as expected.
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CAUSE

This behavior most likely occurs on computers that have a standard PC HAL.
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RESOLUTION

To resolve this behavior, you can upgrade to an ACPI HAL. However, use caution when you upgrade because there are several factors that determine if a PC is capable of supporting ACPI. Make sure that you back up and verify your data.
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STATUS

This behavior is by design.
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MORE INFORMATION

For additional information, click the article numbers below to view the articles in the Microsoft Knowledge Base:
266169  (http://support.microsoft.com/kb/266169/EN-US/ ) How to Troubleshoot Problems with Standby Mode, Hibernate Mode, and Shutting Down Your Computer in Windows 2000
216573  (http://support.microsoft.com/kb/216573/EN-US/ ) How Windows Determines ACPI Compatibility
299340  (http://support.microsoft.com/kb/299340/EN-US/ ) How to Force a Hardware Abstraction Layer During an Upgrade or New Installation of Windows XP
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APPLIES TO
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
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Keywords: 
kbenv kbprb KB298884
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