By utilizing the Powertag !USERSETTINGS=0, company administrators have the ability to prevent end users from accessing the My profile page.  

Normally this is where personal storage can be configured, but in some cases, administrators would like to control the options available to end users:

Once the Powertag !USERSETTINGS=0 is applied at a Company-Wide level i.e. 

You will notice the My Profile option is completely removed for end users, thereby removing the ability to add any personal storage.