Consider the following scenario:

• You create a volume on a computer that is running Windows Server 2008 or Windows Vista Service Pack 1 (SP1). This volume does not have a drive letter or a mount point. The unique access method is the volume’s GUID.
• You try to download one or more files from a Background Intelligent Transfer Service (BITS) server to this volume. Or, you try to upload one or more files from this volume to a BITS server.

In this scenario, the BITS client cannot download or upload the files.

Consider the following scenario:

• You are running a Windows Vista-based computer.
• To provide additional space on the computer’s hard disk, you run a disk management program to expand the size of a logical unit number (LUN).

In this scenario, the LUN size is not updated after you run the disk management program. This issue occurs if you use a computer that includes GUID partition table (GPT) disks.

Note: A master boot record (MBR) disk does not experience this issue.

When the GUID of a network adapter changes on a client computer that is running Windows Vista, the computer registers an old IP address that was associated with the old GUID.

The client computer also registers new IP addresses that are associated with the new GUID. However, because the client computer registers old IP addresses, another client computer may try to use the old IP address. If the old address is not valid, a connection failure may occur.