Consider the following scenario on a Windows Vista-based or Windows Server 2008-based computer:

• You configure the computer to generate a complete memory dump file when the system crashes.
• You use the DedicatedDumpFile registry entry to specify the location for the dump file.

In this scenario, after the system crashes, the memory dump file may not be successfully generated. Instead, you find a file that is named dump.tmp file at the location that you specified for the dedicated dump file.

This problem occurs if both following conditions are true:

• The dedicated dump file and the system memory dump file are in the same volume.
• The free space on the volume that you specified for the dedicated dump file is less than two times the physical memory size of the computer.

On a computer that is running Windows Vista or Windows Server 2008, you use the Fc.exe command to compare two files. However, if the two files have the TAB character or the SPACE character anywhere in the 7 bytes that come before the 128th byte in a character string, the Fc.exe command does not work correctly.

You use a Windows Vista-based computer to generate a Windows Imaging Format (.wim) file that contains more than 30 images. When you use an Unattend.xml file to install Windows Vista through the .wim file, the installation fails. Additionally, you receive an error message that resembles the following:

Windows could not calculate how much space is required for installation.

When you try to upgrade a computer to Windows Vista, you receive the following error message:

This computer does not have enough space for temporary files. Windows installation needs at least size megabytes (MB) of space on any partition for temporary files. To install Windows, free enough space and restart the installation.

Error code 0×80070103

You experience this problem even if you have sufficient hard disk space to install Windows Vista.

After you format a disc by using the Windows Vista Live File System, the available space on the disc is less than the capacity of the disc. For example, after you format a 700 megabyte (MB)-disc, less than 700 MB is available for use on the disc.