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ITsVISTA KB-Link: KB971254

You are incorrectly prompted to format the volume when a formatted volume is mounted on a NTFS folder that is located on a computer that is running Windows Server 2008 or Windows Vista

Consider the following scenario:

  • You create a folder on a NT file system (NTFS) volume on a computer that is running Windows Server 2008 or Windows Vista.
  • You configure this folder as a reparse point or as a mount point for volumes that are added.
  • A formatted volume is mounted on the folder.

In this scenario under a stress situation, you receive the following message in a message dialog box when the volume is mounted to the reparse point or mount point:

You need to format the disk in drive before you can use it.
Do you want to format it?

In the message dialog box, if you click the Format disk button, the wrong volume is formatted. For example, you mount a volume on the “E:\mount” folder, and then you receive the message mentioned in this “Symptoms” section. If you click the Format disk button, volume E instead of the mounted volume is formatted.

There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB971254.

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