I have a 2010 MacBook Pro that still only has 4G Memory, 2.4 Processor with Intel i5. I tried to upgrade to Mavericks from 10.6.8 (yes, I'm way behind) and it says I need almost 8G of room to do it. What's my next step to make this happen? More RAM? From what I can tell I can only increase the Memory another 4G. I need to upgrade the OS so that I can start using Adobe Cloud (which is already on my desktops). thanks.