When you try to install Windows Vista on a computer, the
Upgrade option is unavailable. You may also receive a message that is specific to the computer hardware.
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This issue occurs when one or more pieces of hardware that are attached to the computer are incompatible with Windows Vista.
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To resolve this issue, follow these steps:
| 1. | If an installation of Windows Vista is in progress, cancel the current Windows Vista installation. |
| 2. | Download and install Windows Vista Upgrade Advisor. To download Windows Vista Upgrade Advisor, visit the following Microsoft Web site:
Note Before you run Windows Vista Upgrade Advisor, attach all devices that you typically use to the computer. These devices include printers, scanners, or external hard disks. Windows Vista Upgrade Advisor will examine these devices for compatibility with Windows Vista if the devices are attached. |
| 3. | Run Windows Vista Upgrade Advisor. Windows Vista Upgrade Advisor scans the computer and creates a report of all known system, device, and program compatibility issues. If issues exist, Windows Vista Upgrade Advisor recommends ways to resolve them. |
| 4. | Upgrade or replace any incompatible hardware as directed by Windows Vista Upgrade Advisor. |
| 5. | Unplug all optional devices. After Windows Vista is installed, plug these devices in one at a time. |
| 6. | Start the Windows Vista installation. |
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For more information about hardware compatibility in Windows Vista, click the following article number to view the article in the Microsoft Knowledge Base:
919183 (http://support.microsoft.com/kb/919183/)
System requirements for Windows Vista
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