Install new fonts
Installing fonts are easy. The font files end with a .TTF extension. There are a couple of different ways to install a new font.
Method One
Once you download the font, you can right-click the .ttf file and select install. Depending on the operating system you are running, you may need to right-click and “open” the file and then select install. If you have UAC enable on your computer, as we suggest, then you will be prompted to enter in credentials with Administrative privileges.
Method Two
Open Fonts by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, and then clicking Fonts.
1. Click File, and then click Install New Font.
2. If you don’t see the File menu, press ALT.
3. In the Add Fonts dialog box, under Drives, click the drive where the font that you want to install is located.
4. Under Folders, double-click the folder containing the fonts that you want to add.
5. Under List of fonts, click the font that you want to add, and then click Install.
There are tons of different fonts and many places to download them from. Make sure you are on a reputable site before downloading any file of course. Below is a good Microsoft site with lots of fonts to choose from.
http://www.microsoft.com/typography/fonts/product.aspx?PID=161
References
http://windows.microsoft.com/en-us/windows-vista/install-or-uninstall-fonts