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When you try to install the Windows Anytime Upgrade license package on a Windows Vista-based computer, you receive an error message that resembles the following:
Cannot Install License Package
This problem occurs if you try to install an x64 version of a Windows Vista upgrade on an x86 version of Windows Vista.
To resolve this problem, install a Windows Vista upgrade whose architecture matches the architecture of the installed version of Windows Vista.
Windows Vista Business, Windows Vista Business N 64-bit Edition, Windows Vista Home Premium, Windows Vista Home Premium 64-bit Edition, Windows Vista Home Basic, Windows Vista Home Basic N 64-bit Edition, Windows Vista Starter