sorry...i had add the memory uasge of system services in the screen shot, it is about 91.1 MB... but this is not mean that the OS take that only... i'll try to ask for another shots. Edit: i'd asked the guy that took the screenshot, he told me: "right now its using like 739mb of ram and i only have bitcomet, IE, msn 8.0 open, but yeah you only need 1.50gig cpu and you can use 512 ram but they recommand at least 1 gig of ram".