how to get free avast?

I was just woundering if you could get avast free my sister told me that you could and i was just wounder how i do it because i have some viriuses
Please Help ME :cry:

Here: http://www.avast.com/eng/down_home.html
avast! is free for HOME and NON-COMMERCIAL users.
Feel free to ask your questions and welcome… Oh, if you can, try to read something about avast! into the help file 8)


http://www.avast.com/eng/pic/qhomereg.gif

http://www.avast.com/eng/pic/qhomedown.gif

When you register for the free version, a licence key is sent to you email address which is valid for 14 months. Once the 14 months is up, just re-register for another 14 months.

avast! Home is only availble for non-commercial home use.

Watch the instructional video on how to enter your licence key