Hello, I would need some advise. I was today for my first time ever at the Genius bar to have my Macbook Air checked (11” mid 2013 256/4GB i5). Reason is that the warranty period is over in 2 weeks plus I found that it has a tendency to get warm/hot. The genius run the hardware tests which didn’t show anything and then also a special ‘cooler test’ which failed (strangely, the message was that a file could not be loaded, so it sounded more like an issue with their testing system to me… But in any case, she said the logic board would have to be changed - under warranty. She was also so friendly to clean my screen and there I noticed for the first time that there seems to be some dust under the glass in the almost top right corner. Not a big deal but when she and I saw it she immediately said she would exchange the screen. So there we go, I thought I had it quickly checked out and now they want to change both logic board and screen. I don’t mind, getting new parts should only be beneficial in the long term. They didn’t have a logic board in stock so I will bring it in later this week. Now I have two questions: How do you prepare your machine before handing it over? Do you wipe all data off it (after putting it on a time machine backup of course)? I have in addition to the Mac OS partition also a Windows partition - in case I have to set up everything again afterwards, what is the best way? Carboncopy? How to best delete my data: New admin account and deleting the old one? How long is the warranty on the repair: The genius lady said three months but that sounded very short. And as said my warranty is up in 2 weeks time, so the warranty on the new parts is important to me since I don’t plan on buying Apple Care (just too expensive in comparison with the macbook price itself) Anything else I should think of? Many thanks in advance for all pieces of advice!