Microsoft Security Essentials icon

Microsoft Security Essentials For Windows
Download (14.4 MB)

About Microsoft Security Essentials

Microsoft Security Essentials is an antivirus program created by Microsoft that provides comprehensive protection for your computer. With a user-friendly interface and a range of features, Microsoft Security Essentials ensures a safe and secure computing experience.

Key Feature
1: Core Security Features

Microsoft Security Essentials offers a robust set of security features, including antivirus and antispyware engines, rootkit protection, and real-time detection through Microsoft SpyNet. These features work together to provide a solid layer of protection for your computer, keeping it safe from various threats.

2: Easy Installation and Configuration

The installation process for Microsoft Security Essentials is simple and straightforward, with options to customize your security preferences during the setup process. The program also allows you to schedule scans, toggle default actions against threats, and adjust real-time protection settings.

3: Integration with Internet Explorer and Windows Firewall

Microsoft Security Essentials integrates with Internet Explorer to scan downloads for potential threats, as well as with the default firewall in Windows Vista and Windows 7 for enhanced security. This integration provides a more comprehensive security solution for your computer.

4: User-Friendly Interface

The interface of Microsoft Security Essentials is designed to be accessible to users of all experience levels. The program features a clean and uncluttered interface, with tabs for managing your security status, scan options, updates, and history.

5: Performance and System Impact

While Microsoft Security Essentials has some room for improvement in terms of system performance impact, the program still provides reliable protection for your computer. Independent testing has shown mixed results in terms of performance, but overall, the program remains a worthwhile option for those seeking a lightweight security solution.

In conclusion, Microsoft Security Essentials is a solid antivirus program that provides essential protection for your computer. With its core security features, easy installation and configuration, integration with Internet Explorer and Windows Firewall, and user-friendly interface, Microsoft Security Essentials is a reliable choice for keeping your computer safe from various threats. However, users seeking better performance and system impact may want to explore other lightweight security options, such as Panda Cloud Antivirus Free Edition.

Reviewed by Eddie C. Reardon


Updated onAug 21, 2023

Old Versions

Microsoft Security Essentials4.10.209.0
Oct 20, 2022
Microsoft Security Essentials4.8.204.0 (64-bit)
Nov 10, 2015
exe64 bit
All Versions
Microsoft Security Essentials icon
Microsoft Security Essentials for PC
A free antivirus software from Microsoft
Free Downloadfor Windows

How to download and Install Microsoft Security Essentials on Windows PC

  • Click on the Download button to start downloading Microsoft Security Essentials for Windows.
  • Open the .exe installation file in the Downloads folder and double click it.
  • Follow the instructions in the pop-up window to install Microsoft Security Essentials on Windows PC.
  • Now you can open and run Microsoft Security Essentials on Windows PC.