I work for Schrader International, Inc. and we have a license that allows us to load Solidworks at home. I am using the 32-bit version of 2012 right now. I just upgraded my operating system to Win 7 so that I could install the 64-bit version and improve performance to what I am used to at my work computer. All went well until I tried to activate the new installation. It failed to activate. What is the issue? Do I need to uninstall the 32-bit prior to activation of the 64-bit?