From the developer, “FontFrenzy allows you to remove and back up all fonts that were not originally installed with Windows. Every time you boot your PC, Windows must load all installed fonts, which can slow down the boot if you have a lot of fonts installed. This program allows you to safely remove them, keeping a snapshot, so that they can be restored later if needed. In addition, it also offers management features to preview fonts, remove selected fonts and to install new ones.”
View the complete program instructions and help on the author’s site here.