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System may become unresponsive during Daylight Saving Time (DST) changeover if RealTimeIsUniversal is set
Article ID: 2687252 - View products that this article applies to.
Microsoft is aware of a potential system unresponsiveness issue that may be caused by using the RealTimeIsUniversal registry entry for the Daylight Saving Time (DST) changeover.
A hotfix is available to resolve this issue in Windows Server 2008, Windows 7, and Windows Server 2008 R2. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2800213We strongly recommend that you not use the RealTimeIsUniversal registry entry. This issue does not occur if you do not use this entry.
(http://support.microsoft.com/kb/2800213/ )High CPU usage during DST changeover in Windows Server 2008, Windows 7, or Windows Server 2008 R2
We recommend that you remove the RealTimeIsUniversal value from the registry or set its value to 0. This will prevent the system from becoming unresponsive during the DST changeover. To make this change, follow these steps.
Warning 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:
322756To have us set the RealTimeIsUniversal value to 0 for you, go to the "Fix it for me" section. If you prefer to set the RealTimeIsUniversal value to 0 yourself, go to the "Let me fix it myself" section.
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
Fix it for me
To set the RealTimeIsUniversal value to 0 automatically, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.
Fix this problem
Microsoft Fix it 50851
Then, go to the "Did this fix the problem?" section.
Let me fix it myself
Did this fix the problem?
Article ID: 2687252 - Last Review: March 4, 2013 - Revision: 5.0