External HD cannot install "prevented by policy"

[userWin7]

Hi, new here, so this thread may be in the wrong section...

I have an external HD, plug & play, that I cannot install on Win7. When I try, I get the error message "due to policy". I know this has something to due with the Admin configs, but I don't know how to change them. How do I do this?

here is a screen shot of the error message, this may help to answer the question:

 

[Ztruker]

Found some possibilities via Google: windows 7 - Device installation forbidden by system policy - Super User

 

[jumanji]

Blocking Installation of Removable Devices - Windows 7 Tutorial

This should help you decipher something on this topic.