How do I disable the "Nouveau Kernel Driver"?

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http://askubuntu.com – I'm trying to install proprietary nvidia graphics driver I downloaded from nvidia website. It will not install because it says that the "Nouveau kernel driver" needs to be disabled first. I opened synaptic and uninstalled everything that had nvidia, nouveau, or jockey in its name. It still won't work. What exactly do I need to do to disable the "Nouveau kernel driver"? (HowTos)