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Microsoft Security Essentials is world-class security for your PC that's free* and easy to download. Here are some ways Microsoft Security Essentials helps keep your PCs safe without getting in your way or making you worry.
Microsoft Security Essentials reached end of service on January 14, 2020 and is no longer available as a download. Microsoft will continue to release signature updates (including engine) to service systems currently running Microsoft Security Essentials untill 2023.
Microsoft Security Essentials (MSE) is a discontinued antivirus software (AV) product that provides protection against different types of malicious software, such as computer viruses, spyware, rootkits, and Trojan horses.
Feb 16, 2023 · Signature updates end in 2023. Microsoft Security Essentials serves as the onboard virus and anti-malware tool for Windows 7 and Windows Vista. Windows 11, 10, and 8 use Windows Defender.
Download Microsoft Security Essentials, a free and reliable antivirus software that protects your PC from various threats. It is easy to install and use, and it updates automatically to keep your system secure.
Jan 16, 2012 · Microsoft's free anti-malware for Windows. Reviews. By Simon Bisson. published 16 January 2012. This security software is free for those with genuine copies of Windows XP, Vista and 7.
Download the Microsoft Security Essentials virus and spyware definition update file that is appropriate for your version of Windows: Download the file for a 32-bit (x86-based) version of Windows. Download the file for a 64-bit version of Windows.
