I really do not know if this has been already answered. I really do not have any idea about this but just want to get the things clear. Actually the thing is that here I have 13 inch MacBook Air and it is having 4GB RAM there. Regarding the question that I have actually come here for. I just want to know if I can have the Virtual Machine to run on this MacBook Air without any issues. The scenario is such that at the work place Windows XP is preferred and hence I have to stick to the same by making use of the Virtual Machine. So; is it like that I will have to make some upgrade on MacBook so that I can have this combination to work without much issues. Any help in the matter will be really appreciated.