I am far from the expert in this field, but i too had older version of of norton, its upgraded itself just yesterday, and wow got rid of five viruses i never knew i had, one i aware of as my computer would not shut down, but now it does, thats the bugbear one and i had a trojan one, now all repaired so it should do i think, i can ask my husband tonight , he knows all about this stuff, builds and repairs computers in his spare time,