Windows defender does a really good job on its own on Win 10. In combination with adblockers that can save you from clicking on some unwanted boring pop ups offering to speed up your computer if you just download their free software that turns out to be adware or worse, really not much to worry about. Microsoft already has your data, and there is no such thing as free software. If it says its free, you and your data are what is for sale.
“The aim is to balance the terror of being alive with the wonder of being alive.”
― Carlos Castaneda