Updated 09 Feb 2017 How to access “Security” permissions:

Sharing and Security:

Simple File Sharing

If you are unable to set permissions for the wordshark-shared folder as there is no security tab then the machine is probably set to "use simple file sharing":   To set permissions:   Open Windows Explorer and navigate to the wordshark-shared folder. Go to Tools / Folder options:  In folder options select the View tab. Under Advanced settings scroll down to Use simple file sharing and untick: Click on OK.  Right-click the wordshark-shared folder and left click properties. You should now have the security tab.  (Return to main instructions)