I run a side line pc tech business out of my house. Most of my customers usually have some virus or another. 9 times out of 10 they take my recommendation to install your antivirus software but it doesn't find all viruses. I have to use adwcleaner, malwarebytes, and mbar (made by malwarebytesJ) and in some occasions tdsskiller by Kapersky.
I almost always have to run four programs to clean their pc's.
Can someone explain to me why webroot can't find all these viruses?