For those with Dells, etc.
http://www.yorkspace.com/pc-de-crapifier
The PC Decrapifier is designed to remove a specific list unwanted software in an unattended fashion. Before running, the user may select exactly what software should be removed. Currently, it is targeted for use on most Dell machines; however it will theoretically run on anything that has the software listed below.

http://www.yorkspace.com/pc-de-crapifier