Download Microsoft Security Essentials
Protecting your PC from online threats such as malware and viruses is crucial, and betting your online security on software that doesn’t work efficiently, is a waste of time.
This is why Microsoft developed its own antivirus software called Microsoft Security Essentials, one of the most popular antivirus programs in the past.
Secure your devices with award-winning cybersecurity technology.
Maximize your PC's security and performance with top-notch digital threat detection.
Keep secure with groundbreaking AI detection and prevention technology.
Browse the web securely for up to 3 devices across Windows, Mac, iOS or Android systems.
Best security tool for intense browsing activity.
Microsoft Security Essentials system requirements
- Operating System: Windows Vista (Service Pack 1 or Service Pack 2), Windows 7
- CPU: 1.0 GHz clock speed or higher
- Memory: 1 GB RAM or higher
- Disk Space: 200 MB
- Internet connection: needed to install and download the latest virus and spyware databases
- Internet Browser:
- Windows Internet Explorer 6.0 or later.
- Mozilla Firefox 2.0 or later.