Why does Excel start up with a message saying “Locate your product key”?

Ble_rina16 March 19, 2014
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Why is it every time I try to open Microsoft Excel it shows up something saying “Locate your product key”?  What should I do?

  1. Hovsep A
    April 3, 2014 at 6:10 pm

    Support for Microsoft Office for Mac 2011 and 2008
    http://support.microsoft.com/ph/12853/en-ca

  2. Oron J
    March 19, 2014 at 1:09 pm

    Is this on a Mac or PC?