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HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager Locate the following key in the registry:
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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:ģ22756 How to back up and restore the registry in Windows Then, you can restore the registry if a problem occurs. For added protection, back up the registry before you modify it. Therefore, make sure that you follow these steps carefully. However, serious problems might occur if you modify the registry incorrectly. Important This section, method, or task contains steps that tell you how to modify the registry. To change the registry value that enables tag mode for Poolmon.exe, follow these steps.
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To enable pool tagging on a Windows NT 4.0-based, Windows 2000-based, or Windows XP-based computer, use one of the following methods: Method 1: Edit the Registry Note It is not necessary to enable pool tagging in Windows Server 2003 as it is enabled by default. The pool tagging feature collects and calculates statistics about pool memory sorted by the tag value of the memory allocation. Enabling Tag Modeīefore running PoolMon, you must enable pool tagging and then restart your computer. The second section describes how to gather the information for troubleshooting by using Poolmon. The first section that follows describes how to enable tag mode for using Poolmon. In this case, the following events may be logged in the System log: More Information Frequently, this condition causes the system to stop functioning correctly. Therefore, available memory is completely used over time.
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This information can be used by Microsoft Technical Support to find kernel mode memory leaks.Ī memory leak is caused by an application or by a process that allocates memory for use but that does not free the memory when the application or process finishes. The data is grouped by pool allocation tag. Poolmon displays data that the operating system collects about memory allocations from the system paged and nonpaged kernel pools and about the memory pools used for Terminal Services sessions. This article describes how to use the Memory Pool Monitor utility, Poolmon.exe, as a troubleshooting tool to monitor memory tags. How to use Memory Pool Monitor (Poolmon.exe) to troubleshoot kernel mode memory leaks INTRODUCTION