Hello everyone, I've searched for references before creating this thread but there was not enough explanation for my need. I thought I'd need a detailed answers for my specific questions. I have a Mid 2009 2.26 GHz Macbook Pro running OS X Mavericks. I also have a Bootcamp partition running 32-bit Windows 7 because I haven't upgraded my RAM (which I have now to 6 GB memory). My questions are: 1. I need to re-install my Windows 7 to 64-bit since I can't use all of the 6 GB memory because I'm running 32-bit (maximum 2.7 GB usable) to play Rocksmith 2014. Are there any negative effects or differences if I run 64-bit? 2. Can my Mac (with my upgraded RAM) run the 64-bit? Will there be any lags? 3. What do I need besides the 64-bit installer to re-install my Windows Bootcamp? That's about all guys, I would appreciate any comments or suggestions regarding this topic. Thank you for coming by.