crp Posted February 19, 2014 Share Posted February 19, 2014 But not just for any XP anti-virus, but an AV that will work with XP-64 SP2. Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 19, 2014 Share Posted February 19, 2014 ESET NOD32 and ESET Smart Security work great on 64-bit. Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted February 19, 2014 Share Posted February 19, 2014 I ran XP/SP3 from around 2001 till about 2013 on my main system (not as primary OS since '06, though). I used Norton originally. Hated it. Went to AVG and then later Avast! The last 4 years or so, I ran MS Security Essentials. I NEVER experienced any virus issues on my XP installation during all of this time. Maybe I was just lucky. I used a bit of common sense, too, I suppose. Anyway, that's my real world AV experiences. Currently I'm running Win 7 64 with MS Sec Ess. No troubles so far. 1 Quote Link to comment Share on other sites More sharing options...
crp Posted February 19, 2014 Author Share Posted February 19, 2014 XP-64 has very limited options when it comes to AV, for instance M.S's Security Essentials not available. Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 20, 2014 Share Posted February 20, 2014 That is true about Microsoft Security Essentials for XP ... only for 32-bit versions. Odd but there it is. Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted February 20, 2014 Share Posted February 20, 2014 So, what's wrong with running the 32 bit MS Sec Ess on Win XP 64? As far as I know, any 32 bit app should run on a 64 bit Windows without any troubles. I'm running quite a few in my Win 7 64 installation on this machine, actually (older games). Or is it that you would just prefer to have a 64 bit AV for your Win XP 64? Quote Link to comment Share on other sites More sharing options...
crp Posted February 20, 2014 Author Share Posted February 20, 2014 So, what's wrong with running the 32 bit MS Sec Ess on Win XP 64? As far as I know, any 32 bit app should run on a 64 bit Windows without any troubles. I'm running quite a few in my Win 7 64 installation on this machine, actually (older games). Or is it that you would just prefer to have a 64 bit AV for your Win XP 64? Lil Bambi is correct about this. Quote Link to comment Share on other sites More sharing options...
ross549 Posted February 20, 2014 Share Posted February 20, 2014 Running a 32 bit application in a 64 bit OS would not hurt anything. However, if you have more than 4 GB of RAM, MSE would not be able to see anything there.. right? Adam Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 20, 2014 Share Posted February 20, 2014 Microsoft's MSE tells you it's the wrong version and won't install it. At least that is what it used to say. Quote Link to comment Share on other sites More sharing options...
goretsky Posted February 20, 2014 Share Posted February 20, 2014 Hello, Most anti-malware programs make user of device drivers which have to be the same "bittedness" of the operating system, e.g., a 32-bit operating system requires 32-bit drivers, and a 64-bit operating system requires 64-bit drivers. As far as I know, most of the commercial and free anti-malware programs support Microsoft Windows XP 64-bit Edition, or at least all the ones besides Microsoft do. Regards, Aryeh Goretsky Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 20, 2014 Share Posted February 20, 2014 Microsoft's MSE only has a 32-bit version though, I thought...maybe I am remembering it wrong... Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 20, 2014 Share Posted February 20, 2014 Nope...not remembering it wrong... No MSE for XP 64-bit? - Microsoft Community The only 64-bit download is for PCs running the 64-bit version of either Windows Vista or Windows 7. Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted February 20, 2014 Share Posted February 20, 2014 How come MSE 32 runs fine and dandy on my Win 7 64? Lucky, maybe? Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 20, 2014 Share Posted February 20, 2014 (edited) I have a feeling you may only think you are running MSE 32 on a 64-bit Windows. If you are running MSE 32 on it, even if 64-bit hardware, it's likely running 32-bit Windows 7?? The times I have tried to put 64-bit on 32-bit, or vise versa, it complains loudly. Edited February 20, 2014 by LilBambi Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 20, 2014 Share Posted February 20, 2014 reply to photofinishThe 32-bit version of MSE's installer won't run on 64-bit Windows, it'll exit with a message telling you to download the 64-bit version. In general with 32-bit and 64-bit versions of applications on 64-bit Windows, the difference is performance. When 32-bit applications run on 64-bit Windows they run on a compatibility layer known as "Windows on Windows" or WoW64 »en.wikipedia.org/wiki/WoW64 See also »msdn.microsoft.com/en-us/library···85).aspx The impact might be very minor, depending, but there's no good reason not to run the 64-bit versions of applications when they're available. From @BBR I don't think that Microsoft has changed that policy. Because of this, I have downloaded all available versions in case I need it for clients. Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted February 21, 2014 Share Posted February 21, 2014 I have a feeling you may only think you are running MSE 32 on a 64-bit Windows. If you are running MSE 32 on it, even if 64-bit hardware, it's likely running 32-bit Windows 7?? The times I have tried to put 64-bit on 32-bit, or vise versa, it complains loudly. You definitely CANNOT run a 64 bit app on a 32 bit operating system. However, most 64 bit operating systems are backward compatible with 32 bit apps. Anyway, my Win 7 Enterprise 64 bit better D***** well be 64 bit. That's what I paid for, anyway. It says it is. Win 7 64 installs apps to two directories: Program Files and Program Files X86, the latter being a 32 bit folder. I'm definitely running MS Security Essentials on both my main and laptop Win 7 Enterprise 64 installations. It works like a champ on both. Now, as far as this working on XP 64... I dunno. Quote Link to comment Share on other sites More sharing options...
goretsky Posted February 21, 2014 Share Posted February 21, 2014 Hello, Microsoft Security Essentials supports 64-bit versions of: Microsoft Windows Vista Microsoft Windows 7 Unsupported are 64-bit versions of: Microsoft Windows XP Professional 64-bit Edition Microsoft Windows 2000 Microsoft Windows 2003 Microsoft Windows 2008 plus any IA-64 (Intel Itanium) versions of the above Under Windows 8 and newer, Microsoft Security Essentials has been re-branded as Windows Defender (which was formerly the name of Microsoft's standalone antispyware program for earlier versions of Windows). Interestingly enough, both versions of Windows RT come with an installation of Windows Defender, and it receives virus signature database updates just like it's x86/x64 big brother does. Realistically, it's probably there more for intercepting malicious Flash, HTML, Javascript and the like, but if you were to ever plug in a flash drive infected with an Windows (x86/x64-based) worm or some other infected .EXE, I suspect it would catch that, too. Regards, Aryeh Goretsky 1 Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 21, 2014 Share Posted February 21, 2014 I don't know, but it may well be a good idea, to consider uninstalling the 32-bit MSE, Eric, and install the 64-bit version. As Aryeh noted, "Most anti-malware programs make user of device drivers which have to be the same "bittedness" of the operating system, e.g., a 32-bit operating system requires 32-bit drivers, and a 64-bit operating system requires 64-bit drivers." Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted February 21, 2014 Share Posted February 21, 2014 'Bittedness' may not be generally 'important' other than regarding speed, but when it comes to Antivirus software and drivers...I wouldn't mess with that at a time when the system needs to be at its peak performance ... removing malware/viruses/trojans/worms, etc. Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted February 21, 2014 Share Posted February 21, 2014 I don't know, but it may well be a good idea, to consider uninstalling the 32-bit MSE, Eric, and install the 64-bit version. Maybe I need to clarify here... I never said I installed a 32 bit version of MSE. I was just going by what was being said here in this thread, that there was no 64 bit version. I downloaded the proper version that was available on the MSE website. This is from the MS Downloads page: Quote Link to comment Share on other sites More sharing options...
goretsky Posted February 22, 2014 Share Posted February 22, 2014 Hello, This is not something specific to anti-malware software. Programs which directly access the hardware, for example, some types of other software (tape backup, disc mastering, defragmentation...) may require 64-bit drivers if a particular interface isn't accessible via the drivers provided inbox by Microsoft. In the case of anti-malware support for Microsoft Windows XP Professional 64-bit Edition, one has to factor in the costs of building, testing, verifying, maintaining and support software for a market that has a very miniscule marketshare--a very slim fraction of a percent. Additional information about 32/64-bit compatibility can be found in Microsoft Knowledgebase Article # 306819, "Release Notes for Windows XP Contained in the Relnotes.htm File" in the section labeled Windows XP 64Bit Edition Only. Regards, Aryeh Goretsky Quote Link to comment Share on other sites More sharing options...
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