auto recovery of usb

i want to build a software thats works in two way and install on just double click: 1. when a usb is connect to a Pc it recover MS word and pdf files with in 10 seconds with out showing interface of the software or without running in a [login to view URL] no one can judge his usb is recovering. 2. when the usb connect to a Pc it makes the recoverable image of all the present and deleted ms word and pdf files with in 10 seconds. the basic purpose of this software is that to take all the present and deleted word and pdf files without showing any thing on the screen, so that no one can judge his usb is recovering.