How to Delete all viruses from pendrive

1>step :

             Insert your pen drive to CPU.

2>step:

           open cmd from start button ( search for cmd on start button)

3>step:

           type:-

                      g:       ( this is pendrive disk name)

                    dir        ( this selects directory)

                   del *.exe     (this will delete all .exe file from pendrive)

where the undeleteable file will also be deleted.