To make this post I booted a computer normally used by Windows with a Puppy Linux CD. Since the CD drive is read only there simply is no way any virus could ever take hold. Amazing how people will stick with a weaker choice simply because they are use to it.
I also use Puppy Linux .
I usually use Puppy in my laptop when I’m in public locations. The combination of fast boot and Linux security can’t be beat. I generally use Windows at home.