Free antivirus program Microsoft Security Essentials

Microsoft has released the public beta version of their new free antivirus program called 'Microsoft Security Essentials' intending to help users fight against the evergrowing threats. This free, real-time anti-malware solution from Microsoft might give real-time protection from viruses, spyware, root kits, and Trojans.

Microsoft Security Essentials (formerly known as Morro)is available for Windows XP (32bit), Windows Vista and Windows 7 (32bit/64bit) editions and can be downloaded from http://www.microsoft.com/security_essentials/

Features included are: Real-time protection from malware, Dynamic Signature Service, Rootkit protection, Lightweight , CPU throttling, Idle-time scanning, Smart caching and active memory swapping.