Here are the steps to restore your computer.
Take a picture of your printer offset and scale in the printing tab if you use social booth. You will need this info for later.
1 - Watch this video and choose the keep files.
2 - Download printer drivers - http://dnpphoto.com/en-us/Support/Downloads/Drivers-Tools
3 - Download a new copy of your photo booth software go to the software website and look for the free trial.
4 - Activate software
5 - Done.