I received an email from Apple to let me know that the HDD in my 27" iMac "may fail under certain conditions" and saying that they will replace it free.
Obviously this will mean that the iMac will be tantamount to a fresh new one when I get it back.
I use iCloud and Time Machine and have never needed to do any more than plug and play when I set up new Macs before. Is there any reason this time will be different? I assume it will be returned with OS X loaded?


