...I am currently running Norton IS 2013 on XP.
Until the recent change to the Daz Installer .exe the worst I would get would be a warning after which I could just click on “trust now” and the DL would finish. Now most new release .exes go into quarantine. This doesn’t occur with .zip installers for new releases from say, Rendo, Xurge, or RDNA.
Yes it is a bother at times. However, after having to deal with a nasty (and somewhat embarrassing) redirect virus that slipped through both MS and MacAfee, I feel this to be a “non-issue” compared to the alternatives of my system being more vulnerable (I still don’t “trust” any MS AV) or having to continually stay on top of the latest updates to freeware AVs and manually performing numerous security tasks that Norton IS already handles in background.
It’s basically a trade off in which I see the couple extra clicks when DL-ing now & then outweighs the extra time I would have to spend playing system security tech with a number of AV/spyware utilities on a regular basis.
In a benchmark test performed by Tom’s, the 2010 version of Norton IS received very high marks for security as well as minimal to almost negligible impact on system performance.
The bottom line is my system is clean (I do test it occasionally with a couple different utilities) with minimal effort on my part.
I’ve been through about half a dozen freebie automatic A/V tools and abandoned every one of them as being various combinations of clumsy, slow, inaccurate, incomplete, demanding, unfriendly, or buggy. I have to deal with McAfee everytime I have to service a Dell machine. IMHO it sucks royal swamp water, exhibiting every one of the attributes I listed above.
Over the last 14 years Norton has risen and fallen and risen again. I use it as my personally preferred and professionally recommended A/V tool. Specifically I recommend Norton “InternetSecurity” (not “Antivirus”, not “One”, not “360”). Norton InternetSecurity is the Momma Bear of the Norton A/V tools it’s just the right size. It does work best on at least a dual-core machine but that’s essentially true of any A/V tool.
However, I’m not wedded to Norton. I recommend Norton to people who can afford it ($70 bigstore retail, $60 from Norton(Symantec.com), $50 on retail sale, $40 clearance sale, or even $30 sometimes through NewEgg.com), and that’s usually for a 3-license boxed version which (if you watch the sales) breaks down to $10 per machine per year. What family household doesn’t have at least two computers? But I also recommend Microsoft Security Essentials (MSE) to the freebie people. It’s easy to install, it updates automatically, it does a half decent job and is, for me, the least frustrating of the freebies. Also, as a second opinion tool in addition to Norton or MSE I install the free version of MalwareBytes (www.MalwareBytes.org) and don’t accept their trial of their “Pro” version. I just install the manually operated free version, and run it manually only once or twice a year or when I suspect that my primary A/V tool has let a malware infection slip through. It doesn’t update automatically. It doesn’t run in the background. It has zero effect on the system until you tell it to run. And it doesn’t interfere with your automatic primary A/V tool. I also use MalwareBytes as my first attempt to recover from an infection. I boot to “Safe Mode with Networking”, download the latest version of MalwareBytes, update its definitions, and run a full scan. It usually brings a misbehaving system back to enough health to boot to full mode and run the primary A/V tool again.