Help please w/MBPr return

Sign out of everything, especially iTunes and iCloud. Open Disk Utility and Erase the drive. If you put personal stuff on it you'll want to run one of the more secure wipes. It took hours on my iMac, but it had a spinning platter drive, not an SSD.

 

its real easy to reimage your mac. You can always go to apple and they will help.

 

edit: To remove personally identifying info not relevant to the conversation.

 

Also I know I can't speak for every best buy but when I used to work at Geek Squad we had to restore everything to factory settings. So if you don't feel like restoring it just log out of accounts and delete sensitive data then return it. If you know how to do it I would still advise you restore it though.

 

All you really need to do is deauthorize iCloud, etc, delete your account and files, and then erase free space. This writes over all the empty space so that data recovery programs would not find any deleted data.