Microsoft Security Essentials

Microsoft Security Essentials

Microsoft Security Essentials software provides real-time antivirus and other protection for home PCs while helping to guard against 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 that your customers can be assured that their PCs are protected by the latest technology. It is available through preinstallation for genuine Windows 7 32-bit and 64-bit.

Do not install Microsoft Security Essentials on Windows 8, as Windows Defender will automatically provide an industry-accepted level of protection to protect users from viruses and all forms of malware. In addition, OEMs are not licensed to distribute Microsoft Security Essentials with Windows 8.

Features and benefits

Microsoft Security Essentials has a lightweight design and uses smart resource utilization techniques to minimize the impact on common computing tasks users do every day. With a no-hassle, straightforward installation, automatic updates, and a simple user interface, this solution helps make it easy to get and stay protected.

What's in it for customers What's in it for you
  • No trials, renewals, or expiration
  • No registration
  • No upselling to a paid solution
  • Minimal PC impact
  • Automatic updates and upgrades
  • Simple user interface, one-click action button
  • Easy installation with OEM Preinstallation Kit (OPK)
  • No cost to you or your customer
  • Turnkey solution
  • Differentiated value for genuine Windows PCs
  • Minimal PC performance impact
  • No need for billing infrastructure or back-end integration
  • No distribution of COAs to customers
  • Reduced support costs

Sales tools

Resource Description
This guide provides a look at the features of Microsoft Security Essentials and how they benefit consumers.
This script provides a structured demo presentation and talking points for each step.
Real people talk about what they want from an antivirus solution.

How-to videos

Watch these videos to help you get the most from Microsoft Security Essentials.

Get instructions on how to quickly install Microsoft Security Essentials.
Learn how to do an on-demand scan for viruses.
Fix a Problem
Find out how to address a threat when detected.
See how to get and use Microsoft Security Essentials.

Microsoft Security Essentials OPK

Microsoft Security Essentials Version 2 Service Pack 1 is offered in an easy-to-install OEM Preinstallation Kit (OPK) for PCs that are preinstalled with the Windows 7 operating system. The deployment guide for the OPK contains instructions that you can use to pre-load Microsoft Security Essentials onto new PCs for distribution to your customers.

Get the OPK and OPK deployment guide.

Additional resources

* Microsoft Security Essentials is available at no charge for customers who are verified to have a copy of genuine Windows in select countries. No registration or personal information is required, only automatic verification of your genuine Windows installation.

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