I spent the last 8 or so hours trying to install Microsoft Office 2010 on Windows 8 Pro. Didn't happen. I called iYogi tech support who tryed to help me for the last 3 hours with no success. We finally concluded Office 2010 is not compatible with Windows 8. So, I could upgrade to Office 2013 for ONLY $400.00 or install OpenOffice for free. Well, let me see now, which do you think I did???