I have the Academic Version of Windows Vista Ultimate 32 & I'm wondering if this can be upgraded to the 64 bit version. I searched for a 1/2 hr on Microsofts web page on how to upgrade the 32 bit version to 64 & could not find anything. Can You up-grade this version to 64 bit? The disk is part # 66R-00712. I searched for this thread earlier but could not find an answer.