If this software locates malicious software, the user will be asked for the course of action. Microsoft Security Essentials was designed as a replacement for Windows Live OneCare and Windows Defender in earlier versions of Windows. Just like many other antivirus tools, this one provides the same type of protection by scanning your computer in real-time while monitoring downloaded files for viruses. The first version of this software was released in 2009, and it supported Windows XP and all newer versions of Windows.

Microsoft Security Essentialsis a free antivirus software designed to protect your PC from computer viruses, spyware, rootkits, and other online threats.

Pros Very low impact on system resources Automatic updates built-in feature No ads No bloatware in the installation process Cons Can't change the timing for updates Unreliable scanning time intervals If you miss an update, it will take from 48 to 72 hours for the update to be force-installed Home › Software › Antivirus › Download Microsoft Security Essentials

Security essentials 64 bit windows 10