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How to Clear the Windows Paging File at Shutdown
Article ID: 182086 - View products that this article applies to.
This article was previously published under Q182086
For a Microsoft Windows XP version of this article, see 314834
This article documents the method for clearing the Windows paging file (Pagefile.sys) during the shutdown process, so that no unsecured data is contained in the paging file when the shutdown process is complete.
Some third-party programs may temporarily store unencrypted (plain-text) passwords or other sensitive information in memory. Because of Windows virtual memory architecture, this information may be present in the paging file.
Although clearing the paging file is not a suitable substitute for physical security of a computer, you may want to increase the security of data on a computer while Windows is not running.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
(http://support.microsoft.com/kb/102985/EN-US/ )REG: CurrentControlSet Entries PART 2: SessionManager
Article ID: 182086 - Last Review: February 27, 2007 - Revision: 3.3