A-squared Free 3.5 is a security utility that comes free and without any user restrictions. It helps you clean not just malwares, but also protects you from Trojans, Backdoors, Worms, Dialers, Keyloggers and other such pests that mar our internet browsing.
The A-squared comes with a well made screen layout and is easy on the eyes. It is also very user friendly and you need not be an expert to use it. The latest version of this free and worthy antispyware is just 17MB in size and can run on all Windows operating systems incuding windows Vista.