Download Microsoft Security Essentials for Windows 7

Microsoft Security Essentials for Windows 7 and Windows Vista is now available for download. 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 provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software. It 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.

I have compiled a list of answers to some frequently asked questions which a Microsoft Security Essentials user may have :

Microsoft Security Essentials

MSE logo

Q: What is Microsoft Security Essentials (MSE) exactly?
A: MSE is Microsoft’s free antivirus offering to users of genuine Windows 7, Vista & XP users. It is specifically designed for individual consumer PC use using the smallest resource footprint possible to provide complete anti-malware protection and will include a new protection technology, as part of the Microsoft anti-malware engine, called Dynamic Signature Service (DSS).

Q: Where can I download Microsoft Security Essentials (MSE) from?
A: You can download it from Microsoft. It is now also being offered via Windows Update.

Q: How is MSE different from Windows Defender?
A: Windows Defender detects and removes spyware only. MSE is designed to protect against the full breadth of malicious software, and specifically also prevents viruses, rootkits, worms, trojans, and other malicious software from infecting your machine. MSE is a superset of Windows Defender.

Q: Is MSE designed to replace Windows Defender and the Windows firewall?
A: No but if you are running Microsoft Security Essentials, you do not need to run Windows Defender.  MSE will disable Windows Defender to manage the PC’s real-time protection. You need not disable Windows Defender manually.

MSE does not include a firewall. But it will work in tandem with your Windows firewall to protect your PC.

Q: How do I submit Bug Report to Microsoft for MSE?
A: Bug reports can be submitted via the Microsoft Connect website for Microsoft Security Essentials.

Q: Do I need to remove other antivirus applications before installing MSE?
A: Yes you should remove your other “memory resident” antivirus applications before you install Microsoft Security Essentials. A Memory Resident antivirus application is an application that starts when you turn on the computer and stays started until you turn off the computer.

Q: How can I create a Security Essentials Support log file?
A: MSE includes a small utility that allows you to create a support log.

In Windows 7/Vista, open cmd as an Administrator.

Type and hit Enter:

 cd %programfiles%\Microsoft Security Essentials

Type and hit Enter:

 MpCmdRun.exe –getfiles

The application will run for 5 minutes and create a zipped file called

This will be saved automatically to – %ProgramData%\Microsoft\Microsoft Antimalware\Support\ folder.

Attach the zipped file to your bug report.

Q: Where can I get additional help for MSE?
A: You can get support on MSE at the Microsoft MSE Forum.

Q: How can I submit a case online or report a possible virus or spyware problem to Microsoft?
A: You can do so at the following links:

Q: What are the minimum system requirements for installing MSE?
A: A CPU with clock speed of 1.0 GHz, 1 GB RAM, VGA 800×600, Disk space 140 MB.

MSE final version is now available for download to all from Microsoft.

Posted by on , in Category Downloads with Tags
Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.


  1. SWATerson

    I don’t quite trust microsoft…

  2. SWATerson

    Ok, I tried it and it was perfect! Microsoft really impressed me this time.

  3. Douglas

    I am looking for the free version of Windows Security Essentials.

  4. ^ There is no such legit security program.

    Use Microsoft Security Essentials!

  5. nitin

    need for remove virius and to protect my computer

  6. monibajpai

    1. six months before, i downloaded the microsoft essentials from your advise & guidelines. but virus affected the hardware of my computer. why?

    2. now i change the hardware & i want to reload the microsoft essentials but the the download is not work properly, why?

    3. windows sp2 i have already download which is essential for the working of ms essentials. after that the same condition . how can i do ?

    write immediately. & phone also . because i have no other antivirus. my tel nos is; 22021043-011, 22023876-011, celno;09868608047, 09013224166. ok.

  7. A virus does not affect hardware.

    Make sure that you have downloaded the latest version of Microsoft Security Essentials from the Microsoft website.

    There should be absolutely no issues in installing the latest MSE on an original Windows copy.

    If you need assistance you may have to register and post your questions at TWC Security Forum.

  8. Fernando Cajes

    Does Microsoft Security Essentials works in older version of windows? i.e. 2000 & XP?

  9. I will check it later. Thanks!

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