Here's a synopsis of what I'm dealing with. I've never owned a MAC before so I thought instead of spending a grand for a new one I would see if i could find one pre-owned locally . So I purchased an early 2008 Black MacBook with OS X 10.7.4 Lion from a local pawnshop. The person who had it before me was still logged on and it had all kinds of accounts set up and such. So I went online and researched how to erase all of that. I did the restart holding the option key which brought me to the MAC OS X Utilities. I selected Disk Utility then selected Macintosh HD and then the Erase Tab. After that I clicked security options and then selected single pass of Zeros. Clicked OK and the clicked erase. It took about an hour and then I selected to erase the free space. After that I went to to the MAC OS X utilities options box and selected Re-install MAC OS X. All said and done its now asking me to input my Apple ID and then it says my ID has not purchased the operating system. Now what do I do ? I've been researching for days and have come up with this : Calling the Apple store and ordering " Replacement System install DVD" $20 Purchasing " Snow leopard" as the original OS $20 Then, Purchasing " Lion OS" $20 Not to mention I was just on New Egg and ordered a brand new battery and 4 GB of Ram. I feel like I am on the right track but all this seems like a lot of running around. On a side note, Now, when I am in the disk Utility I see that there is a line under " Mackintosh HD" and then a Label of " Disk 1" and then under that there is another label that says " Mac OS X Base System". What would these 2 labels be used for ? Is that the Recovery Partition? Is any of that useful to me at the moment?