Microsoft KB Archive/926190

= You cannot remove the volume after you convert the Windows Vista installation partition from a Basic Disk volume to a Dynamic Disk volume =

Article ID: 926190

Article Last Modified on 4/16/2007

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APPLIES TO


 * Windows Vista Business
 * Windows Vista Enterprise
 * Windows Vista Home Basic
 * Windows Vista Home Premium
 * Windows Vista Ultimate

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Important Dynamic discs are only supported for Windows Vista Business and Windows Vista Enterprise and Ultimate, not supported for Windows Vista Home Basic and Windows Vista Home Premium.

As an exceptional case, when you upgrade your computer from Windows XP Media Center Edition to Windows Vista Home Premium, some dynamic discs are handled and supported.



SYMPTOMS
After you convert the disk partition on which Windows Vista is installed from a Basic Disk volume to a Dynamic Disk volume, you experience the following symptoms:
 * If you try to reinstall Windows Vista, the Delete command in the Where do you want to install Windows dialog box is unavailable. Therefore, you cannot remove the Dynamic Disk volume.
 * If you right-click the volume in the Disk Management tool in Windows Vista, the Convert to Basic Disk command is unavailable. This issue occurs because Windows Vista must delete the contents of a volume to change the volume to a Basic Disk volume. Windows Vista cannot delete the contents of the partition on which it is installed.



RESOLUTION
To resolve this problem, use one of the following methods, as appropriate for your situation.

Method 1: Format the volume
The Windows Vista Setup program lets you format the Dynamic Disk volume. To do this, click Format in the Where do you want to install Windows dialog box when you install Windows Vista.

Method 2: Use Diskpart to remove the volume
You can use the Diskpart.exe command to remove the Dynamic Disk volume. To use this tool, you must start the computer to a command prompt by using a program such as the Microsoft Windows Preinstallation Environment (Windows PE).

For more information about how to use Diskpart.exe, visit the following Microsoft Web site:

http://technet2.microsoft.com/WindowsServer/en/library/ca099518-dde5-4eac-a1f1-38eff6e3e5091033.mspx?mfr=true

For more information about how to obtain Diskpart.exe, visit the following Microsoft Web site:

http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=0FD9788A-5D64-4F57-949F-EF62DE7AB1AE

Keywords: kbexpertisebeginner kbhardware kbsound kbtshoot kbprb KB926190

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