Error message when you try to upgrade a computer to Windows Vista: The installed operating system does not support an upgrade to Windows Vista

Error message when you try to upgrade a computer to Windows Vista: The installed operating system does not support an upgrade to Windows Vista

Article ID : 932007
Last Review : March 15, 2007
Revision : 1.1

SYMPTOMS

When you try to upgrade a computer to Windows Vista, you cannot select the Upgrade option. Also, you receive the following error message in the Install Windows dialog box:

Upgrade has been disabled
– The installed operating system does not support an upgrade to Windows Vista

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CAUSE

This problem occurs when the current operating system does not support an upgrade to Windows Vista.

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RESOLUTION

To resolve this problem, perform a full installation of Windows Vista. Or, upgrade the computer to an operating system that meets the upgrade requirements for Windows Vista.

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APPLIES TO
• Windows Vista Home Basic
• Windows Vista Home Premium
• Windows Vista Ultimate
• Windows Vista Business
• Windows Vista Enterprise
• Windows Vista Starter
• Windows Vista Home Basic 64-bit edition
• Windows Vista Home Premium 64-bit edition
• Windows Vista Ultimate 64-bit edition
• Windows Vista Business 64-bit edition
• Windows Vista Enterprise 64-bit edition

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Keywords: 
kbsetup kbexpertisebeginner kbtshoot kberrmsg kbprb KB932007

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Microsoft Knowledge Base Article

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