In this video, we learn how to do a clean install of Snow Leopard. First, restart your Mac and when it gives you the chime, hold down the option key. Now, put the disc into the computer and it will load the disk. Click the disk, then it will boot from the Snow Leopard disk. Once it does this, come up with a normal menu named Mac OS X. Choose your language, then run through the rest of the windows that pop up. Choose the options that work best for you and then re-boot your computer. When finished, Snow Leopard will be installed without any problems!