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HOW TO: Display Comma Separators in the Windows Performance Tool in Windows XP

Support for Windows XP has ended

Microsoft ended support for Windows XP on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

This article was previously published under Q300884
Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows registry


This step-by-step article describes how to force the Windows Performance tool to display commas in counter values while you are viewing real-time activity in System Monitor or Performance logs. For example, a counter value that appears as 1000000 appears as 1,000,000 after you add the registry key shown in this article.

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Display Comma Separators in System Monitor

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Follow these steps, and then quit Registry Editor:
  1. Click Start, click Run, type regedit, and then click OK.
  2. Locate and then click the following key in the registry:
  3. On the Edit menu, point to New, and then click DWORD Value.
  4. Type DisplayThousandsSeparator, and then press ENTER.
  5. On the Edit menu, click Modify.
  6. Type 1, and then click OK.
NOTE: You must quit and restart the Windows Performance tool for this change to take effect.

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perfmon.msc performance monitor

Article ID: 300884 - Last Review: 01/15/2006 22:33:24 - Revision: 1.3

  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
  • kbhowto kbhowtomaster KB300884