How can I upgrade Microsoft Office 2010 to Office 365?
Just go to office.microsoft.com and follow the instructions there
Yeah, I think it's just a matter of getting the 365 subscription and installing the latest software. Should install over your old version without problems.
you can easily get the genuine upgrade from Microsoft http://www.office.microsoft.com/en-001/offer/ Check it out
you can install both of them side by side