Not happening here. Occasionally iTunes will ask for account verification, often after an upgrade of software or if any parameters on the host machine have changed.
Did you accept the license agreement? Once done it shouldn't change unless hardware changes are made or itunes upgrades as I said.
I suggest you contact Technical Support by phone or online chat. It's free and linked under Useful Links at the top of the page..
Nope, no changes to hardware or iTunes. Only change was the updated virus engine and definitions. I do accept the license terms, but it does that each time, since the iTunes preferences file is being deleted each time I close iTunes. I will contact tech support. That seems the most productive course of action.
Unless itunesprefs in in your quarantine folder it isn't McAfee that;s doing it, at least I very much doubt it. Maybe something else?
Only Tech Support can really troubleshoot this sort of thing.