Look no further, visit http://www.activevirusshield.com/. What you will need to do is go through with the sign up process. You will need to provide a valid e-mail address in which the “key” is sent to and you can then download the program/install file and install it. Once you install it it will ask you if you want to install the “security toolbar.” DON’T DO IT. You do not have to and it is more of a nuisance than anything.
Next, it will ask you to activate it. You can then retrieve the key from your e-mail account and input it here. Reboot your computer and you should be good to go.
Be warned though, this is still not an end all be all product. Like with any other layer of security it is just that, a layer of protection. You still need to be sure to always update your computer using Microsoft Update. Also make sure you have some type of spyware/adware protection. I recommend AVG anti-spyware, Spy Sweeper 5.2 or Spyware Doctor.