Good day. My friend recently gave me his Mac Mini which he has had for only 2 years. He believes it is the hard drive that went on him and since he is not the least bit technical he gave it to me. I myself and not technical but he said maybe my brother might be able to help out since he works on computers. I haven't mentioned this to my brother yet and he doesn't really work on Macs at all. My question is, is it a pretty easy job to replace the HDD on a Mac Mini? If so are there any good guides on this site with steps? What sort of hard drive should I be looking to buy if I was to replace it? Also what sort of troubles may I encounter trying to install the OS on the new HDD? I think he still has all his software from Apple. Thanks for any help you can provide.