There are several places that have freeware versions of anti-virus software. I have been using a freeware version of AVG that I got from FileHippo a few years ago. I haven't had any problems with it. There are also several other sites and programs available. See the related link(s) below.
Avast is quite good.
I am using Avast for about an year,It's great. You can register it using your own email-id and then keep on using it.
Chat with our AI personalities
There are many places which offer anti virus software as a free download. Some sites which free anti virus downloads are Free AVG, Avira, and Avast. Additionally, a person may also check with McAfee for free downloads.
Avast Anti Virus, Free AVG Anti Virus, McAfee, Geek, and Free Virus Software Downloads are a few places where one can go to download free virus software.