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Shutdown: Clear virtual memory pagefile

Updated: January 21, 2005

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

Shutdown: Clear virtual memory pagefile

Description

This security setting determines whether the virtual memory pagefile is cleared when the system is shut down.

Virtual memory support uses a system pagefile to swap pages of memory to disk when they are not used. On a running system, this pagefile is opened exclusively by the operating system, and it is well protected. However, systems that are configured to allow booting to other operating systems might have to make sure that the system pagefile is wiped clean when this system shuts down. This ensures that sensitive information from process memory that might go into the pagefile is not available to an unauthorized user who manages to directly access the pagefile.

When this policy is enabled, it causes the system pagefile to be cleared upon clean shutdown. If you enable this security option, the hibernation file (hiberfil.sys) is also zeroed out when hibernation is disabled on a portable computer system.

Default: Disabled.

Configuring this security setting

You can configure this security setting by opening the appropriate policy and expanding the console tree as such: Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\

For specific instructions about how to configure security policy settings, see Edit security settings on a Group Policy object.

For more information, see:

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