Some times when you double click on your pendrive icon then pen drive does not open and "
Open with " dialog appears on the computer screen.It happens mainly because of viruses and spywares.But it may happens due to the error in the hidden file "
autorun.inf", inside the pen drive.Here is the solution for this problem.

(1) First,go to Run, type
cmd and press enter.
(2) Now change the drive location to pen drive location.
(3) Then, type
attrib to see the
autorun.inf file.
(4) If
autorun.inf file is present then type
attrib-S-H-R autorun.inf and press enter.
(5) Then, type
del autorun.inf and press enter.
(6) Now. go to My Computer and rename the pen drive label.You have completed your job.