To access the new font manager, from the Start menu, select Control Panel, then search for Fonts. From here you can see what fonts are installed, preview the individual fonts, and add or remove them. Some of the other improvements in the font manager include the grouping of like fonts into families and the ability to toggle them on and off.
Note: By right-clicking the font, you can toggle it by selecting the Hide option. This will prevent applications from loading that font (thus saving memory), but the files are retained in the Font folder.