Explorer.exe Process Uses Many CPU Cycles When Windows Is Idle

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Article ID: 317751 - View products that this article applies to.
This article was previously published under Q317751
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Under certain circumstances, the Explorer.exe process uses an excessive number of CPU cycles when Windows is idle, and as a result, Windows performance is degraded.

NOTE: To view the CPU cycles that the Explorer.exe process uses, right-click a blank area on the taskbar, click Task Manager on the shortcut menu that appears, and then click the Processes tab.


To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to Obtain the Latest Windows XP Service Pack
The English-language version of this fix should have the following file attributes or later:
   Date         Time   Version      Size     File name
   15-Feb-2002  13:39  5.1.2600.28  293,888  Msctf.dll
   15-Feb-2002  13:39  5.1.2600.28  209,920  Msutb.dll


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.


Article ID: 317751 - Last Review: May 14, 2007 - Revision: 3.5
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
kbhotfixserver kbqfe kbenv kbbug kbfix kbqfe kbwinxpsp1fix KB317751

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