I've tried Office 365 on a Windows 7 machine and a Windows 8 machine and I ran into so many issues with the software not working correctly that I've had to uninstall it and go back to 2010. It seems like it's still the beta version but I'm not going to "rent" software much less buggy software. I don't have any more time to waste with MS technicians trying to help them figure out their software problems.