Microsoft Security Essentials (32-bit) 4.0.1526

4.2 out of 5 stars 4.2 (162 votes)

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Windows 7/Vista / Freeware / 63,516 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. 1 out of 5 stars
    xpclient

    Reviewing 4.0.1526 (Apr 27, 2012)

    Avoid version 4.0 if you can. The options to configure to scan all downloads, monitor only incoming or outgoing files, enable or disable behavior monitoring or network inspection system have been deleted in 4.0. Use Avast for a more configurable and most lightweight antivirus.

  2. 5 out of 5 stars
    ssb

    Reviewing 4.0.1526 (Apr 24, 2012)

    I'm using and love it!
    But I don't understand why they have removed all the realtime options in v4.

  3. 5 out of 5 stars
    ghammer

    Reviewing 4.0.1526 (Apr 24, 2012)

    This is the old RAV antivirus.
    It was the best then, and in its new incarnation, still the best.
    Avast and AVG? Meh.

  4. 1 out of 5 stars
    gatorfan95

    Reviewing 4.0.1111.0 Beta (Feb 5, 2012)

    User beware. I tried to install the 64 bit version of this on my Win 7 machine. It locked up during the "Install Updates" phase and crashed my system. I had to do system restore to get my computer back. I'll stick with Avast! and SupeAntiSpyware

  5. 5 out of 5 stars
    statm1

    Reviewing 4.0.1111.0 Beta (Dec 1, 2011)

    If you look at page 12 of that PDF MSE ranks "Advanced" along with most others..

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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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