Hi! So I have a 10.6.8 (now) computer. Upgraded it from 10.5.8. It is 2009, and have these specifications : 2.53 GHz Intel Core 2 Duo. Memory 4Go 1067 MHz DDR3 249 Go capacity memory (91.76 free). Mac Office 2008 So my questions : should I upgrade to Yosemite 10.10.1? I also want to install VirtualBox Windows 10, to play Path of Exile and League of Legends... Any tips somebody? Thanks!!