Windows 7 Change from Windows 7 32 bit to 64 bit with OEM license

Discussion in 'Operating Systems' started by News Bot, Jan 26, 2013.

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  1. News Bot

    News Bot Well-Known Member

    Jan 10, 2007
    In the Machine
    I inherited my mother-in-law's Lenovo tower on which she had Windows 7 Professional 32-bit installed under an OEM license.  I have the product key.  I am trying to change from 32-bit to 64-bit, still keeping Windows 7 Professional.  I tried using slui.exe
    4, but after entering the code was told it was invalid.  Ran validation tool, validated my license, ran slui.exe 4 again and still invalid.  Some info says to contact Microsoft, other info says I have to order recovery disk from manufacturer Lenovo. I have
    burned a WMI recovery disk.  Many thanks for guidance.

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