At last, Microsoft has faced up to the responsibility of providing security for its operating systems. Microsoft have released an Antivirus / Malware security tool called MSE (Microsoft Security Essentials) and its free. They have not been at all forthcoming with the details as apparently they are upsetting the likes of Norton and Mcafee who make a lot of money from their version of the programs.
Here it is. There is the usual validation that your software is genuine and then it installs.
http://www.microsoft.com/Security_Essentials/
