I started working as a freelance graphic designer and I have many fonts installed from the era when I was just doing stuff for entertainment and learning. I don't want to use these fonts for my clients work not at the beginning of this carrier at least, so I moved to only free to use fonts and resources. The thing is that the old fonts are cluttering my font selection list and take from me valuable time when searching for just the right font from the job. So I'd like to remove all of them except the default ones like arial, helvetica, courier etc.
How can I do it? (is there an open source font management software that will allow me to do this?). Do I need to purchase a license for the fonts that comes pre-installed with windows too, like Arial?