If you want to install additional fonts, you must first download them. 

To install a Font:

1. Open Fonts Folder. 
   (for Vista - Control Panel - Appearance and Personalization - Fonts)
   (for XP - Control Panel - Fonts)

2. Click File, and then click Install New Font.

3. If you don’t see the File menu, press ALT.

4. In the Add Fonts dialog box, under Drives, click the drive where the font that you want to install is located.

5. Under Folders, double-click the folder containing the fonts that you want to add.

6. Under List of fonts, click the font that you want to add, and then click Install.