Microsoft KB Archive/887731

= The &quot;Compact virtual hard disk&quot; task takes a long time to finish in Virtual Server 2005 =

Article ID: 887731

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft Virtual Server 2005 Standard Edition

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SYMPTOMS
When you click Compact virtual hard disk after you inspect a virtual hard disk in Microsoft Virtual Server 2005, the task might take a long time to finish. You might also experience this problem when you merge virtual disks. For example, if you merge a differencing hard disk image with the parent image, the task might take a long time to finish.



CAUSE
This problem can occur if the host operating system is using Intel Physical Addressing Extension (PAE) support. You may want to turn on PAE support if your computer has more than 4 gigabytes (GB) of installed memory.



WORKAROUND
To work around this problem, turn off PAE support in the host operating system. For information about how to do this, review the articles that are listed in the &quot;More Information&quot; section.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

283037 Large memory support is available in Windows 2000 and Windows Server 2003

291988 A Description of the 4 GB RAM tuning feature and the Physical Address Extension switch

268363 Intel Physical Addressing Extensions (PAE) in Windows 2000

Keywords: kbtshoot kbnofix kbperformance kbinterop kbserver kbpae kbenv kbsyssettings KB887731

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