Q: Maverick shows in app store as purchased by not on my macbook!  What do I need to do?

Hello Bellini2,

Mac OS X will show "Download" even after it has downloaded.  This is beneficial if you need to install Mac OS X onto an alternate drive.

If you have installed OS X Mavericks, you will still get the software updates even though you see the word "Download" by it in the Mac App Store.  As long as you see Version 10.9 in About this Mac, you are currently up to date:

Finding your OS X version and build information

http://support.apple.com/kb/HT1633

Best,

Delgadoh