From Macecraft Software:
Decrap allows you to easily and safely remove all of the bloatware that comes pre-installed by the manufacturer on a new Windows PC. You can completely uninstall all the unneeded software without any user input. Select what to remove and Decrap will launch the software's uninstallers and automatically click their buttons to run them. After the software's' own uninstallers have been executed, Decrap will use its own uninstallation engine to make sure nothing is left behind from the uninstalled software.