Microsoft Security Essentials (32-bit) 4.2.223.1

4.1 out of 5 stars 4.1 (181 votes)

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Windows 7/Vista / Freeware / 109,196 downloads

Microsoft Security Essentials provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software. It 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. It’s easy to tell if your PC is secure — when you’re green, you’re good. It’s that simple.

Microsoft Security Essentials runs quietly and efficiently in the background so that you are free to use your Windows-based PC the way you want—without interruptions or long computer wait times.

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Reviews of Microsoft Security Essentials (32-bit)

  1. 2 out of 5 stars
    Zootopia3001

    Reviewing 4.2.223.1 (Feb 27, 2013)

    Have tried this I don't know how many times. Same result: VERY heavy on the PC with its background service running. Besides, realtime A/V software is really only for the internet clueless. I've learned to live without traditional system realtime A/V(spyware and malware) software protection and am doing just fine thank you, and the PC rewards me in return with the utmost speed.

    BTW, this software keeps dragging down your system even when you turn off its realtime protection because of its constantly running background service.

  2. 1 out of 5 stars
    some guy

    Reviewing 4.139.1036.0 (Oct 31, 2012)

    score very low in independent test
    AV-Comparatives.org

  3. 4 out of 5 stars
    NightFright

    Reviewing 4.139.1036.0 (Oct 31, 2012)

    This download description is not properly labelled. This is only a definition update for MSE, not a new version of MSE itself (latest is currently 4.1, so 1.x would be quite a step backwards...). Rating is for the scanner itself still, which is a very decent product. There may be better ones out there, but it does the job for those who are happy with an easy-to-use AV that does not require much attention.

  4. 3 out of 5 stars
    Aegis69

    Reviewing 4.139.1036.0 (Oct 31, 2012)

    Microsoft obviously bought a product that was doing virus protection right, then branded it. The problem is that this app is very system heavy and memory intensive.

    I recommend clamwin + clam sentinel. Light, free, real time open source virus protection.

  5. 5 out of 5 stars
    sheinaya

    Reviewing 4.1.204.0 Pre-Release (Jul 21, 2012)

    Cool! but try ca anti virus, for me its the best, real time scanner is very light, unlike other anti-virus makes your PC stuck at 5-10secs.
    I have a copy, license will expire on 2015,
    you can download it here>> ca-anti-virus dot weebly dot com.

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Discuss Microsoft Security Essentials (32-bit)

  1. Sep 30, 2009 - 11:36 AM
    rbailin

    How do you download a version other than the one appropriate to the O/S you're currently running?

    Answer: Click on the "Locales & Languages" link just below the big "Download Now" button at http://www.microsoft.com/security_essentials/

    For United States (English), there are 3 versions available:

    Windows XP 32-bit
    Windows 7/Vista 32-bit
    Windowns 7/Vista 64-bit

  2. Sep 29, 2009 - 10:19 PM
    The MAZZTer

    Download links to English XP 32-bit version.

    To download versions for other OSs (Vista/7 32/64bit) or locales, use the "Homepage" link and click the big Download Now button in your face.

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