Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Related Question
Free Antivirus solutions for Windows

I am looking for a free native 64 Bit Anti virus package. I know lots / nearly all packages will run in 32bit emulated mode, but I can't seem to find a truly native 64 bit package, that's free. Anyone?

share|improve this question

closed as not constructive by Bob, Ivo Flipse Jun 12 '12 at 8:17

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.

For Windows 7, presumably? – Jonik Sep 4 '09 at 20:55
@Jonik: Presumably. All of JL's other questions seem to be about Windows / Windows 7. – Chris W. Rea Sep 4 '09 at 21:00
This is actually a duplicate since all the Windows AV programs listed on the mentioned question run both 32Bit and 64Bit. However I am allowing it as it is a valid question. – BinaryMisfit Sep 5 '09 at 7:27
up vote 2 down vote accepted

Microsoft Security Essentials

Link is to Softpedia. It's in beta right now but I've been using it for about a month and so far it works great. It has a 64bit version.

share|improve this answer
Would you trust it enough to do away with your traditional AV product? Not really sure if I'm ready to trust MS with an AV product, but I could be wrong? – JL. Sep 5 '09 at 13:02
I already did. I used Kaspersky AV before. I don't think Microsoft is very new in the AV "game". Their paid OneCare app was pretty decent from the tests I read. It seems like they improved on that and got to a very nice product. You really should try it. – miloshadzic Sep 5 '09 at 15:47
I have marked this answer as accepted, because out of all the answers, its the only fully fledged 64bit solution. – JL. Sep 5 '09 at 18:32
And yeah - I've downloaded it, and it seems a very well polished solution. I'll be reading more reviews about it, but from what I've read so far it's a competitive AV solution. – JL. Sep 5 '09 at 18:43

I've always used AVAST and never had any problems. The link provides you information on a 64BIT AVAST.

share|improve this answer

A good site for x64 software is

you'll certainly find some trailware in the security page:

They don't list any known free anti virus scanner as 64bit native.

share|improve this answer
Thanks Davy , yes unfortunately they don't but lots of other cool stuff there... – JL. Sep 4 '09 at 20:55

AVG Free Antivirus.

Here's a snapshot in Process Explorer. While some of its processes are 32-bit, the important one -- avgrsa.exe, which is the resident shield that scans accessed files -- is a native 64-bit process. The proof's here:

AVG processes

Anyway, I wouldn't get too hung up on everything you run being 64-bit. It's often not necessary, and the performance difference is negligible for most applications.

(By the way, I own a registered version of AVG and I also didn't include all of the options during install, so what you see may not reflect exactly what you'd see in the process list for the free version of AVG.)

share|improve this answer
the reason you'd want a 64bit virus scanner is that else the activities of your 64bit process (such as explorer) would not be scanned... – Davy Landman Sep 4 '09 at 21:08
Good point and well-said - I should have elaborated when I said "the important one" above :-) – Chris W. Rea Sep 5 '09 at 2:02

Not the answer you're looking for? Browse other questions tagged .