The Virtual Install Disk includes 32- and 64-bit Microsoft® Windows Server® 2003 drivers for boot devices, which may be necessary to complete the operating system installation. When the Virtual Install Disk option is enabled, Microsoft® Windows Server® 2003 automatically locates the required drivers and installs them, eliminating both the need for user intervention and the requirement that a driver be present on external media during OS installation.
To further optimize the system, HP recommends updating these boot drivers to the latest versions after the OS installation. This functionality is not available with Microsoft® Windows Server® 2008.