Fred Fell, thank you for your feedback. We replied to you by email, the problem is you have installed a number of other antivirus programs on your PC. It's not recommended to use more than one antivirus program as it can slow down PC and produce other problems.

big kahuna, You failed to mention Panda -- very light on resources and works from the cloud. I use Avast Pro (paid) and rarely get ads. . . certainly NOT adware.

I don't see why we would consider what is just trialware like this Nano offering.

big kahuna,

"Windows Defender is just too heavy and slow on a lot of systems."

FWIW, politely disagree... I use it with win10 VMs & on a very low powered win10 tablet [with an Intel Atom CPU]. That said, it's also really hard to completely disable in win10 unless you install 3rd party security software. So I use McAfee on 3 other very low powered devices [with Intel Atom, Celeron, & i3 mobile CPUs], where it's not too bad at all when it comes to slowing the system down.

"There is free and paid decent options out there just do a little research ."

av-test[.]org isn't a bad place to start. Also FWIW, there are people that see false positives as a good sign that security software is working great & is properly aggressive, so keep your eye out for that sort of thing if you read user reviews at retailers like Amazon & Newegg.

Nonya, Avast PRO is probably ad-free, but Avast FREE can be very annoying with all the ads. AVG Free used to be better, but "big kahuna" is right--it has gotten annoying with ads too.

hotdog, VB100 is the oldest trusted testing laboratory in the antimalware industry. Our antivirus takes part in its tests and has 11 awards from this laboratory. You can see the latest test result here https://www.virusbulletin.com/virusbulletin/2019/06/vb100-comparative-review/

John Doe, Absolutely correct. And many free anti-virus perform as good if not better than the paid ones.

"... not to forget the Win10-pre-installed Microsoft Defender which in the meantime is also very good."

FWIW, it's got good ratings at av-test[.]org, but it's part of Microsoft's win10 stuff, and they've gotten a bit sloppy, especially when it comes to anything win10. [Firing the 1/2 of your coders that does QA kinda has that effect IMHO.] And because it is an integral part of win10, I think that a win10 vulnerability stands a better chance of compromising Defender that it does 3rd party security software, though I could of course be wrong.

"And many free anti-virus perform as good if not better than the paid ones."

IMHO, maybe. But there's something to be said for liking the GUI & working with whatever software too. We like & use McAfee & BitDefender in that regard [depending on how powerful the device is], but we also watch the sales, so McAfee unlimited devices has cost us $10 a year, & BitDefender never more that $20. Now there's nothing at all wrong with free, but it's worth that small amount for something we like much better.

John Doe, you can see the latest VB100 test result here https://www.virusbulletin.com/virusbulletin/2019/06/vb100-comparative-review/

amayzingone, we have a free version of our product, you can find it on our website.

Experimento, yes, it's absolutely abnormally. So it would be appreciated if you send logs before uninstall. The normal RAM usage is much less. I have our antivirus on my work PC, right now there are 2 processes which take about 45 Mb for each.

peter,

Security software sends its roots deep into Windows, because malware often tries to disable or circumvent it. Most decent security software companies are aware of the difficulty of removing those roots, so they provide special tools just for that, including Avast.

avast[.]com/en-us/uninstall-utility

mike, Avast is always trying to sneek itself onto your computer. Its often bundled with other software. You have to decline it or uncheck a box to stop it installing. This is not ethical behaviour.

Brandon, Correct!

teo chris, Along with what Brandon said it is FULL of bloatware. I would never install anything from Norton ever again.

Brandon, you can get a 3-seat license of Norton off of eBay for less than 20 bucks! Is that what you consider expensive ?? No offense..

Mike, you must be thinking of very old editions of Norton Security products: the current line of Norton products are streamlined; very quick and easy to install (and remove); not bloatware at all. You are simply misinformed, sad to say, and none offense intended..

Randy, Oh my. I usually don't reply to people after I make comment but I must in your case. This review is first one I found when I google Norton Security products review.

Heavy system-performance impact.

Many years ago, Norton antivirus products would slow your system to a crawl while they scanned your hard drive. But Norton subsequently made great strides on that front, and most of its products we tested in the past few years had only a moderate system impact. We're sad to report that the bad old days may be back.

Reducing system resources sends out red flags that something else is going on, bloatware.

Don't take my word for it, I am sure you are smart person, go google and find out for yourself.

You're welcome, have a great day.

Bob,
Microsoft Defender

Bob,

"Trust, No One" .... Don't you remember to X-Files??

:-)

Bob, I trust Malwarebytes Pro.

Terry,
I’ve been using AVG free version since the early 90’s, and yes I won’t deny having a few issues and a few virus slip through the system protectors.....
AVG really stepped up its game, got its awards like any other good AV prog.... Though there is other security detailed programs that accidentally step on AVG’s toes.

Become AT savvy, learn a few tricks and if NANO still does it for you, then employ it.

Regards, Vinny.