Horses for courses,
This review is from: Norton 360 v4.0 - 1 User 3 PC (PC) (DVD-ROM)
Customer review from the Amazon Vine Programme (What's this?)
This package contains the things you would expect from an internet security suite: anti-virus, anti-spyware and identity protection. It also has some of the basic facilities which you would expect to find with utilities intended to tune-up your PC: cleaning-up unnecessary files, disk defragmentation etc. It also allows you to make backups. If you are looking for software which integrates these functions, Norton 360 is worth considering.
Prior to using Norton 360, I had been using ESET NOD32. This only included anti-virus and anti-spyware so, maybe not surprisingly, in comparison Norton 360 slowed my (rather ageing) computer down considerably. However, with a newer computer, I wouldn't let this deter you. There is much about the Norton package which seems intelligently set up. For instance, if you leave your computer unattended, it uses the opportunity to start a virus scan.
If you opt to start a scan manually, it appears that the scans become faster and faster as the program learns which files can be trusted. Anti-virus signatures are updated very regularly (and in small bites?) which means that you can continue working with minimal disruption.
I have been particularly impressed with the program's ability to deal with spam. Once installed, a new spam folder was created on Outlook Express. However, not much appeared in it and spam, which was arriving in increasing quantity, simply disappeared without trace. Full marks here.
If you have a newer computer than I do, and want a comprehensive internet security suite, then Norton 360 is well worth considering. I consider this, together with Kaspersky, as being the two frontrunners in this field. (I haven't yet had a chance to try the ESET suite.) Whether you choose this over Kaspersky is probably going to come down to two factors: cost, and whether you see the backup and tune-up facilities as a pro or a con.