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When you remove a virtual hard disk from a virtual machine in System Center Virtual Machine Manager 2008 R2, the .vhd file on the Hyper-V server is deleted without warning
Article ID: 976246 - View products that this article applies to.
In Microsoft System Center Virtual Machine Manager 2008 R2, you remove a virtual hard disk (VHD) from a virtual machine. You expect that the .vhd file is detached from the virtual machine. However, the .vhd file is actually deleted on the Hyper-V server.
A hotfix is available that fixes this problem. To obtain this hotfix, visit the Microsoft Update Web site:
http://update.microsoft.com/microsoftupdateAfter you apply this hotfix, you will receive the following warning message when you remove a .vhd file from a virtual machine: If you click Yes, the .vhd file is deleted from the Hyper-V server. If you click No, the .vhd file remains attached to the virtual machine and is not deleted from the Hyper-V server.
If you want to remove a VHD from a virtual machine without deleting the VHD file on the Hyper-V server, use the Hyper-V Manager console.
PrerequisitesTo apply this hotfix, you must have System Center Virtual Machine Manager 2008 R2 Administrator Console installed.
Restart requirementYou must restart the computer after you apply this hotfix.
File informationThe English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Collapse this tableExpand this table
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/LN/ )Description of the standard terminology that is used to describe Microsoft software updates