Hi. I have a Sony laptop that I installed an SSD into a while back and it runs windows 7. I have a late 2013 iMac 21" with the standard 1tb HDD. I want swap drives between the 2 as I don't use the lap top often. Will I be able to use the SSD in the iMac even though it is formatted for windows? When I go to install Mavericks will it format the drive then, or do I need to get a whole new drive? Any advice would be great!