I have a small OS X 10.5 installation for testing purposes (otherwise use 10.6). After I switched to 10.5 today, Software Update told me that there is a new update available for iTunes. But I have trashed iTunes a long time ago (it's not listed any more if I open /Applications) and purged the trash. Why then OS X will suggest me to update it?
macOS – Why Software Update Suggests Updating Removed Application
macosupdates
Best Answer
When you "uninstalled" iTunes, did you just drag /Applications/iTunes.app to the Trash? Completely removing iTunes from your machine is a bit more involved than that.
Apple provides step-by-step instructions for removing iTunes from Mac OS X here: http://support.apple.com/kb/ht1224. Try following these instructions first, and then check Software Update again.