The Boot.wim file on the head node grows excessively in size after HPC Pack 2008 Service Pack 1 is installed

After you install HPC Pack 2008 Service Pack 1, the Boot.wim file on the head node slowly grows excessively in size. The increase in size may cause high memory utilization on the HPC Head node.
Important Check the current size of the Boot.wim file that is located in following folder:

If the size of the Boot.wim file is larger than 200 megabytes (MB), you must repair the file. To do this, follow these steps:
  1. In the media or file share that you used to capture the deployment image, locate the original Boot.wim file (\sources\boot.wim).
  2. Copy the original Boot.wim file, and then replace the Boot.wim file that is located in the following folder:

  3. Start HPC Cluster Manager, and then click Configuration.
  4. In the To-do List, click Configure your network.
  5. Change the current network topology to something other than what you have, and then complete the wizard.
  6. Click Configure your network again, set the network topology back to its original state, and then complete the wizard again.

Note The Boot.wim file is now repaired. Make sure that you have applied the update that is described in the “Update information” section so that the file’s size does not grow excessively again.

Update information

How to obtain this update

This update is available from the following Microsoft Web site:The following file is available for download from the Microsoft Download Center:
DownloadDownload the update package now.
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.


To apply this update, your computer must be running Windows HPC Server 2008 or Windows Server 2008. Additionally, you must install HPC Pack 2008 Service Pack 1.

Installation instructions

To start the download:
  1. click the Download button
  2. Click Save to copy the download to your computer.
  3. Run the download file on the head node.
Note If you have a pair of HA head nodes, run this update on the Active node and then on the Passive node.

Restart requirement

You may have to restart the computer after you install this update.

Update replacement information

This update does not replace a previously released update.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Article ID: 978570 - Last Review: 12/31/2012 07:16:00 - Revision: 3.0

Windows HPC Server 2008, Windows Server 2008 Datacenter, Windows Server 2008 Enterprise, Windows Server 2008 Standard, Windows Server 2008 Datacenter without Hyper-V, Windows Server 2008 Enterprise without Hyper-V, Windows Server 2008 Standard without Hyper-V

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