

(It’s okay to upgrade Office 2007 to 32 bit Office 2010 onĮither 32 bit or 64 bit operation systems) You can’t upgrade from 32 bit Office 2007 to 64 bit Office 2010 directly, you have to uninstall existing 32 bit Office products prior to install 64 bit Office 2010.But 64 bit version Office 2010 must be installed on 64 bit windows operation systems.

