time machine

Thanks for responding. I downloaded this malwareb because the lady from my Apple Care Agreement plan told me to and ran it. My Mac was acting wierd at that time and I can't even recall what it was doing---and that is why. I just had been reading in the Apple Communities that anti-virus can do things such as mess with programs on my mac. And I believe everthing was OK with iTunes after running the anti-virus program. I also must say that sometime in the past couple of months I exported a couple of my Home Videos to iMovie from itunes to edit and me not knowing evidently what I was doing---somehow lost only 2 movies. A lot of this issue is me being ignorant in knowing how to use some applications. I have tried to read how but have messed up. Maybe my part in this issue has created something that is beyond me understanding how to remedy it. Or maybe the iTunes update did something. If you can help, this would be so much appreciated. Thank You

I will try to do this......Thank you.

In regard to the anti-virus app I now have on my Mac............Is it safe to delete that app? I went to the launch pad and held down the Malwareb icon until is wiggled. I then clicked on uninstall and a box read something about the support files being deleted also. Can you advise about this?