Microsoft Security Essentials (MSE) – FAQ

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I’ve compiled a list of answers to some frequently asked questions that a Microsoft Security Essentials user might have :

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Q : What is Microsoft Security Essentials (MSE)

A : MSE is Microsoft’s free antivirus program for Windows 7, Vista & XP users. It was developed specifically for individual PC use in the smallest space to provide complete protection against malware and will include new protection technology as part of Microsoft’s antimalware engine, the Dynamic Signature Service (DSS).

Q : Where can I download Microsoft Security Essentials (MSE)

A : You can download it from Microsoft. It is now available around October 18, 2010 and is also available via Windows Update.

Q : How is MSE different from Windows Defender? 12)
A : Windows Defender only detects and removes spyware. MSE is designed to protect against the full range of malware, and in particular prevents viruses, rootkits, worms, Trojans and other malware from infecting your computer. MSE is an excellent set of Windows Defender.

Q : Is MSE intended to replace Windows Defender and Windows Firewall
A : No, but when you run Microsoft Security Essentials, you do not need to run Windows Defender. MSE disables Windows Defender to manage real-time PC protection. You do not need to manually disable Windows Defender.

MSE does not contain a firewall. But it works with your Windows firewall to protect your PC.

Q: How do I send a bug report for MSE to Microsoft? A: Bug reports can be submitted via the Microsoft Connect for Microsoft Security Essentials Web site.

Q: Should I remove other antivirus programs before installing MSE? A: Yes, you must remove your other antivirus programs from memory before installing Microsoft Security Essentials. An antivirus application residing in memory is an application that starts when you turn on your computer and stays on until you turn off your computer.

Q: How do I create a Security Essentials support log file?
A : MSE contains a small utility that you can use to create a support log.

Under Windows 7 / Vista, open cmd as administrator.
Type cd %program files%Microsoft Security Essentials.
Type MpCmdRun.exe -getfiles.
The application runs for 5 minutes and creates a zipped file named
This is automatically saved in the %ProgramData%MicrosoftMicrosoftMicrosoftMicrosoft AntimalwareSupport folder.
Attach the zipped file to your bug report.

F: Where can I get additional help for MSE? A: MSE support is available in the Microsoft MSE forum. You are also welcome on our forum.

F : How do I submit an online case or report a potential virus or spyware problem to Microsoft
? A: You can do this by using the following links :

  • Submit a case online
  • Report a potential virus or spyware problem to Microsoft.

Q: What is the minimum system requirements to install MSE
A : 1.0 GHz CPU, 1 GB RAM, 800×600 VGA, 140 MB disk space.

Q : When will its gtr be available
A : MSE RTM is planned for the second half of 2009 in 10 languages and in the following 20 markets : Australia, Austria, Belgium, Brazil, Canada, China, China, France, Germany, Ireland, Israel, Italy, Japan, Mexico, Netherlands, New Zealand, Singapore, Spain, Switzerland, United Kingdom, United States and United States.

For more help, how to and support issues, go here.

The final version of MSE is now available for all. Click here for more details.

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