You can only remove a few things using some software. Win7T uses packages via DISM to remove stuff. You won't be able to fully customize Win7 at the moment because nothing really removes a whole lot of garbage from the OS, so your options are very limited. However, Win7T can manage add ons and so can a few other unattended software tools like 7Customizer. For 7Customizer you'll need DISM, OSCDIMAGE, and imagex programs to use it properly. i had troubles using 7Cusomiser and everytime i test the image i created in virtual box the image crashes near completetion of the installation.