Unable to create new folders on external hard drive

Hello everyone,
I have lot of many type of (word files, excel files and power point files) files on my external hard drive so I decided to tidy up by creating folders Suddenly I run into this error

Right click on drive and then click to Properties.

Go to the security tab and give full permission to everyone like user, administrator and system by clicking on Edit button and then select the permission checkbox and then click apply and ok.

Now you can able to create a folder.