When you install a 64-bit edition of Windows Server 2008 or of Windows Vista from a 32-bit based installation media, you may have to provide mass storage controller drivers for the 32-bit operating system and for the 64-bit operating system.This article describes how to install third-party mass storage drivers for the 64-bit editions of Windows Server 2008 and of Windows Vista.
To install third-party mass storage drivers for the 64-bit editions of Windows Server 2008 and of Windows Vista, follow these steps:
Start the computer from the 32-bit based installation media, and then follow the instructions in the Setup program.
Select a 64-bit target operating system.
On the Where do you want to install Windows page of the Setup program, click Load drivers, and then locate the folder that contains the 32-bit drivers for your mass storage controller.
Click the 32-bit driver, and then click Next.
Note You receive a message that you must have 64-bit signed drivers. The 64-bit editions of Windows Server 2008 and of Windows Vista do not support unsigned drivers.
Click Load drivers again, locate the 64-bit drivers for your mass storage controller, and then click Next.
Select the target partition, and then complete the installation.
In Windows Server 2008 and in Windows Vista Service Pack 1 (SP1), OEMs can create installation media that contain both 64-bit images and 32-bit images. The operating system starts into the 32-bit Windows Preinstallation Environment (Windows PE), and you can install a 64-bit image or a 32-bit image.
Third-party mass storage drivers may be required to access the target partition. For example, third-party mass storage drivers are required if you use a SCSI redundant array of independent disks (RAID) controller. In this case, you must provide the 64-bit driver and the 32-bit driver on the Where do you want to install Windows page of the Setup program.The 32-bit driver is loaded in the 32-bit Windows PE where the Setup program is running. Therefore, you can access the target partition. The 64-bit driver must be staged into the target 64-bit image and must be deployed to the target partition for the target operating system to start.
If you do not provide the 64-bit driver, you receive a "Stop 0x7b" error message after you restart the computer. This error occurs because the 64-bit operating system does not have a driver for the mass storage controller.