I am a bit out of my comfort zone so please be gentle. I bought a Mac Mini which I believe had the latest OS on it when I purchased it. I am now giving the mini to somebody else and erased the whole hard drive (via disk utility), which is what I thought you had to do? When I boot up Mac mini to reinstall original OS X Mavericks it lets me go through the process then ask for my apple ID which i enter then it says "this item is temporalrily unavailable try again later. Now I am completely stuck and don't know what to do next. Haven't really found a real solution on the web.