So my father passed away 3-4 years ago and I was given his 27" imac. My father, being an older "dog", got the imac and then had parallels installed so he could run windows. Yep. Got the imac because it looked cool, but ran it 100% of the time in windows. So I've always wanted to wipe off the window's partition and change "ownership" name, but just never got around to it. So thought with the new OS, it would be a good time to do that. Problem is, not sure how to wipe everything clean and start anew. I can follow clear instructions, but seems everyplace I look, it kind of says different things. I did upgrade to Mavericks btw. Any "ultra clean install for dummies" instructions anyone could point me to? Thanks!