How to fix you need permission to perform this access?

Till yesteday, my Sandisk pendrive was working fine. It’s having around 2GB of data in it. But, today when I tried to delete one folder it; it showed some weird error i.e. you need permission to perform this action. I’m not facing such kind of issue with any of other file or folder. Help me out please!

Did you try your Pendrive with any other laptop or system? 

Yes, I already tried that before posting here.

If the pendrive showed the same kind of error in other laptop, then it might be corrupted. However, you can try to fix the permissions because sometimes the problem might start from your own PC. 

thankyou, it was very informative.