Article ID: 925809 - View products that this article applies to.
You upgrade Microsoft Windows XP to Windows Vista. After you upgrade, you cannot uninstall Windows Vista by using the Uninstall a program option of the Programs and Features Control Panel tool.
This problem occurs because Windows Vista does not provide the Uninstall Windows Vista option in the Uninstall a program option of the Programs and Features Control Panel tool.
To resolve this problem, back up your files, and then perform a clean installation of Windows XP. To do this, follow these steps:
For more information about the Back Up and Restore Center, visit the following Microsoft Web site:
For more information about going back to Windows XP after you have upgraded a Windows XP-based computer to Windows Vista, click the following article number to view the article in the Microsoft Knowledge Base:
933170If you need help about how to install, reinstall, or uninstall Windows, visit the following Microsoft Web site:
(https://support.microsoft.com/kb/933170/ )How to go back to Windows XP after you have upgraded a Windows XP-based computer to Windows Vista
Article ID: 925809 - Last Review: September 20, 2007 - Revision: 3.4