Mac Clean up
Is there a way to clean up your make to make it faster, I have a mac book pro from spring 2012, all my updates are current and i've just been using it for downloading, i try to keep as muck stuff on my external hard drive but it just seems to be getting progessivly slower, do mac's get viruses, is there a way to speed it up?
thanks
O
Mac Pro, Mac OS X (10.7.5)