Sometimes you need to go nuclear and get back to baseline on all of those Finder window customizations that you make over time and start afresh. This will get rid of all the .DS_Store files that hold those customizations. I save it as a bash script, chmod it 775 and keep it in my ~/bin/ directory as reset_finder_windows.sh

#!/bin/bash
sudo find / -name .DS_Store -delete; killall Finder