Release Date:
Submit Date:
Windows XP/Vista/7/8
User Rating

(485 Votes )

Publisher's Description

Microsoft Security Essentials provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software.

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. 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.


  • Comprehensive malware protection
  • Simple, free download*
  • Automatic updates
  • Easy to use

Operating System: Windows XP Service Pack 3 (SP3)*; Windows Vista (Service Pack 1, or Service Pack 2)*; Windows 7*

A 64-Bit version is also available: Microsoft Security Essentials (64-Bit) 4.1.0522.0

FreewareFiles tested Microsoft Security Essentials (32-Bit) 4.5.0216.0 on 2014-04-09 using leading antivirus scanners and found it 100% Clean. It does not contain any form of malware, spyware, viruses, trojans, etc. We will re-test each updated version and remove the award as well as the program if found infected.
User Reviews
"Not bad at all."

Reviewer: -Mike    Review Date: 2014-03-14
Average Rating (485 Votes )
Pros:  1. It is very easy to use 2. Can control scans and updates 3. Can control how much CPU it uses. 4. Although it seems to be a bit loose in stopping some viruses it can rid the computer of infections that the big names seem incapable of doing. 5. Works well in conjunction with Malwarebytes.

Cons:  Not sure its real time protection is up to scratch but ok if you use it along side Malwarebytes or similar program. Does not work well with xp but no problems with 7. Full scan very slow but effective.

Other Thoughts:  Have tried all the big names and sick of nags, unilateral quarantine, sand-boxing deleting of files without even a message.
Large consumption of resources and over evasive control of your computer. Furthermore complete removal of these programs is just as hard as removing the viruses they are meant to stop. So far my computer has run far better overall with security essentials.
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