Unable to open pen drive: Asking for choose an option to open with!!!

This problem  removes by the following steps:--


first go to run then write " regedit" that is registry 

then press " ctrl+f" 

in this box write "mountpoints2" and delete it ...... 

then again press "ctrl+f" again find mountpoints2 until all these files are not deleted 

then u will see ur problems is solved................