help me completly remove all drivers w660

[neverall]

i have k610 flashed to w660..i dont have system restore so i cant use it to uninstall all drivers of w660....its deleted all now...dont ask me how..3 hour job..but when i connect my sony w660 to pc ,problem is that it doesnt ask me to add new hardware ,but more,it recognize it byitself and it put some USB Ethernet stuff in network adapter(system device) which CANNOT BE UNINSTALLED....it says i cant uninstall ,because of it beeing a boot device...PLEASE tell me WHAT TO DO to completle remove all drivers so i cant start over with connecting my sony to usb port and install only drivers for copy and delete files from sony to pc ...i dont need ethernet or modem....and as i said it is very hard to uninstall that...and i need to reinstall every time again and agin because my pc autodetects sonyericcson...but it didnt for the firs time i connected my sony ,3 months ago..so how to go back to that state....please any expert reply to me...thanx!!! i also have the picture of the driver for w660 i used...