Microsoft Security Essentials 4.6.0205.0 Prerelease

Microsoft Security Essentials is a free* download from Microsoft that is simple to install, easy to use, and always kept up-to-date so you can be assured your PC is protected by the latest technology. Microsoft Security Essentials runs quietly and efficiently in the background so you’re free to use your Windows-based PC the way you want—without interruptions or long computer wait times. Microsoft Security Essentials is efficient and compact. Scans and updates are scheduled to run when the PC is idle and the software works in a way that your PC is still snappy when you’re using it. All this makes Microsoft Security Essentials friendly for all sorts of computers—your old PC, your new PC, your laptop, as well as your little netbook.

Before installing Microsoft Security Essentials, we recommend that you uninstall other antivirus software already running on your PC. Running more than one antivirus program at the same time can potentially cause conflicts that affect PC performance.

*Your PC must run genuine Windows to install Microsoft Security Essentials.

Download: Microsoft Security Essentials 4.5.216.0 | ~ 16 MB (Freeware)
View: MSE Website | Image via Google

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MSE was a very good program a few years back. Now, it tests as a baseline by AV-Test.org, as it statistically is no better than no AV program at all. Avira, Avast, Panda are all superior free AV programs, at the current time. Here's the link: http://www.av-test.org/en/home/

trying out different AV solutions ... was one of my main tasks when i still ran windows (from 98SE till vista). and today probably nothing would have changed... its quite sad and drastic but so it is. and apple users have to be happy for some new program-icons, thats it. while we linux users get a brand new kde, tons of other desktop interfaces, window managers to chose from, we dont need any kind of anti virus or firewall and its all free :) not even if forced to would i ever go back to windows or mac os.

It does the job for me and my home PC's..

Just keep backup of valuable data, in case of home PC, mainly its pictures and video, along with bills and some docs..

Pictures are mostly backed up in DVD where as files are in cloud, so Windows 7 SP1 with MSE is quite fine for me..

Best thing, no extra charge :D

This topic have lots of comments and the other topic(Norton Av) has 0... Poo0oor Norton nobody likes you :D

Nice job Microsoft, you put Norton out of business :D

Edited by veternan, Jul 8 2014, 8:11pm :

did use MSE from 2009 to 2013, then switched to Avast Free since then, still run Adblock plus in IE 11 (Internet Explorer only browser will use myself, as I trust it, feel I don't need anything else installed. Main reason for leaving MSE was slow full scan speeds even on my Quad Core Desktop, Laptop XP don't hardly use anymore at all, and it's easier to maintain 1 antivirus on household PC's

I've used it as far back as I can remember, and since around 1995 I've had only 2 minor viruses that I've removed myself manually, and those were even before MSI was even around.

This program gets a lot of undeserved hate. Everyone loves to say how bad it is and how it fails all those AV tests, well guess what? It's detection is really good for the common virus, all those 'known viruses' because HOLY CRAP Microsoft has one heck of a large sample pool and can easily collect this kind of data, for 99.9% of people this is all they need.

This is where the fail comes in, its 'zero day' detection is bad, things that are not 'known' and already in the database won't probably be detected, this is why it fails all those AV tests because they like to throw all these custom viruses at things and see what will get caught.

I say big f***in woop, this is a plus in many ways because it wont cause false positives and 99% of users don't want that, I sure as hell know my grandma wouldn't want popup boxes constantly because something looks like a generic virus, I sure as hell wouldn't like auto-quarantine sh*t happening because it thinks the AHK script I wrote and use looks like a keylogger.

99.9999% of people will never see a zero day virus, so keep your AV light and non intrusive. If you are even semi intelligent, by not clicking on random .exe files from the web, or clicking on those links in all those spam emails then you have nothing to worry about, even Java gets a bad rap even though its pretty damn amazing for a lot of things, but thats a rant for another time.

Best practices, keep your system up to date, flash, etc. and disable Java in your browser (you don't need it).

And for browser security I recommend Adblock Plus and NoScript if your a power user, with Adblock Plus set rules to allow sites you like and trust.

Edited by Im_Special, Jul 8 2014, 3:35pm :

Im_Special said,
This program gets a lot of undeserved hate. Everyone loves to say how bad it is and how it fails all those AV tests, well guess what? It's detection is really good for the common virus, all those 'known viruses' because HOLY CRAP Microsoft has one heck of a large sample pool and can easily collect this kind of data, for 99.9% of people this is all they need.
.

I know you mentioned adblock plus, but you said 99% of people never get a zero day, what about the zero day that infected something like 2 million people via a bad banner ad on yahoo using a zero day.

warwagon said,

I know you mentioned adblock plus, but you said 99% of people never get a zero day, what about the zero day that infected something like 2 million people via a bad banner ad on yahoo using a zero day.

Is 2 million a big number? Sounds like 1% to me. :) I'm also not trying to argue semantics here and me using things like '99%' is just me saying that its so unbelievably uncommon, and you might as well play the lottery as well, and this 2 million infection should not be taken as a knock against MSI either, because we just don't know the facts about it, like how many of those 2 million were using Kaspersky Anti-Virus, or AVG, or another competitor AV, how many were still using Windows XP, how many were using a not up to date browser or flash plugin?

What I say still holds though, the better something is against 'zero day' the more paranoid it will be, and with that comes false positives, no way around it and the average user don't like to playing with custom rules and whitelists and blacklists, no one here who reads and comments on Neowin is an avarage user. :p

The main way people get infected these days is through there browser of choice, it's literally the door to the outside where things can get you, so it should be there the security effort goes these days as well. Adblock Plus is great for stopping those potential drive-by's of bad ad's, and disabling Java in the browser will do the same for bad drive-by's for that. Heck just run browsers in Sandboxie. :p

macstar said,
is this the software microsoft recommands not to use and replace it with a proper security suite?

Yes, it is.

macstar said,
is this the software microsoft recommands not to use and replace it with a proper security suite?

Its also the AV 75% of Neowin users think is the best AV since sliced bread.

Wait, it isn't? Actually, I did think it was fantastic when it came out. Now that it is built into Windows 8 I just don't bother to install another antivirus, which is pretty much the same boat I was in before MSE came out, except now I have some sort of protection. I used to just install a AV periodically long enough to run a scan and then uninstall it again because most typical AV programs were huge resource hogs. It was nice to finally have an AV that had no noticeable impact on system performance and wasn't at all intrusive.

every av scanning files on the go has an impact on the system. but including it into the os makes it easy for microsoft to claim otherwise. like they did with the IE integrated in the explorer in win98 and you basically had always loaded internet explorer on startup already and it looked like netscape browser back then was much slower while in fact it wasnt and ms was just cheating.

warwagon said,

Its also the AV 75% of Neowin users think is the best AV since sliced bread.

It use to be, but according to VB100 testing, has dropped to about 80% effective against virus in the wild. It's been on a gradual decline.

I've been using this for the past few years and so far no viruses here. The most important thing to remember is that the strongest anti virus is common sense.

macstar said,
every av scanning files on the go has an impact on the system.

I didn't say it didn't have any impact whatsoever, I said it wasn't noticeable

Jason Stillion said,

It use to be, but according to VB100 testing, has dropped to about 80% effective against virus in the wild. It's been on a gradual decline.

i still prefer MSE. but i just hope it don't drop too much further than around 80 percent though. but i figure currently it should be good enough simply because what i do on my PC keeps my chances of infection to a minimum as i rarely run .exe's i don't fully trust as i figure unless i happen to get some infection just from visiting a website chances are MSE will be good enough for me at the end of the day.

ThaCrip said,

i still prefer MSE. but i just hope it don't drop too much further than around 80 percent though. but i figure currently it should be good enough simply because what i do on my PC keeps my chances of infection to a minimum as i rarely run .exe's i don't fully trust as i figure unless i happen to get some infection just from visiting a website chances are MSE will be good enough for me at the end of the day.

I personally still use it, with common sense. From what I remember, MSE was effective at first due to the way it hooked in to the operating system, differently from all the other AV's out there at the time. Since it's become so commonly used (and as a side effect helped kicked norton to fix it resource issues, and prevent some free AV from becoming too useless / bloated / nagging) it's a larger target.