This is best thing you would do to yourself for clearing bad stuff from your body. Will take some time getting used to keeping leg up but will definitely help. For taller people go with 7" option.

I have been using Web-root Secure for many years. It has never had a problem, and from what I can tell it does not slow down my computer. If you shut down your computer at night make sure you run it manually as it is usually scheduled to run itself at 3 am. A CD costs about $20 for 3 computers for one year. I always buy the one year protection because I do not want to deal with this every 6 months.