Remove update warning
I have seven applications that show up with updates avaialble in my Mac App Store (I use Miuntain Lion). I do not use any of these and I never have on my Mac. I believe my son may have used or even bought them on his iPad or iPhone at one time. The apps are registered to his account, for which I do not have or want the password.
I would like to stop receiving the upgrade notices. My Mac App Store account is signed into my account so I do not know why these notices come up. I cannot update because the apps are not installed on my devices (I looked in iTunes too), and also because I do not have the account password. How can I tell the app store to stop looking to upgrade these apps?
Another way to ask, how does the app store decide which applications it should tell ne have updates available. Presumeably the list would be from the applications it thinks I have, but I have bno idea why my Mac thinks I have these 7 applications installed.
iMac, OS X Mountain Lion, i7 16mb