Article ID: 2396587 - Last Review: August 19, 2011 - Revision: 5.1

Internet Explorer 9 is no longer installed after you upgrade from Windows Vista to Windows 7

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SYMPTOMS

You install Windows Internet Explorer 9 on a computer that is running Windows Vista. However, Internet Explorer 9 is replaced with Windows Internet Explorer 8 if you upgrade the computer to Windows 7.

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CAUSE

When you upgrade from Windows Vista to Windows 7, the upgrade process does not check the current version of Internet Explorer. Windows then installs Internet Explorer 8 from the Windows 7 installation source.

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RESOLUTION

To resolve this issue, install Internet Explorer 9 after you upgrade to Windows 7. To download Internet Explorer 9, visit the following Microsoft website:

www.microsoft.com/ie9 (http://www.microsoft.com/ie9)

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