Note: Be sure that when you download fonts from the Internet that you are doing this from a trusted source.
Install a Font:
Go to Start
Select Control Panel
Select Appearance and Personalization
Select Fonts
Select File (if the File option is not visible, press the ALT key on your keyboard)
Select Install New Font
Select the drive where the fonts you are trying to add are located
Select eh folder where your downloaded fonts are located
Select the font that you would like to install
Select Install
Uninstall a Font:
Follow steps 1 – 4 above
Select the font that you would like to uninstall (to select multiple fonts, hold down the CTRL key then click each individual font)
Select File
Select Delete