Is there any way to remove the recovery partition from the late 2012 iMacs, and start completely from scratch? I tried accessing disk utility from a Mountain Lion install DVD (which has worked on other iMacs), but it didn't come up in the list of options to boot from. On a somewhat related note, I noticed that even after doing a 3 pass erase when I wiped the drive (or, at least what it would let me wipe using disk utility), the iMac still remembered my wireless network information. Is that removable? Thanks.