If you are having trouble opening or formatting your pen drive, you can fix this problem by reformatting your pen drive from the command prompt. Here's a simple way how.
Format Flash Drive from Command Prompt
Click on Start
, and type
. Click on OK
Assuming your pen drive letter is K drive
, you can enter
format /q /x k:
, followed by Enter
. Note that you can replace the k
with the applicable drive letter.