Local disk (Q:) / MS office 2010

I bought Dell inspiron 15R 2 months back. In "Computer" along with other volumes/partitions(C:,D:,E: etc) there is a "local disk" (Q:) named " Microsoft Office Click-to-Run (Protected)" which does not open. "Access denied" is the error message. And i have MS office 2010 listed in the "programs and features" in "Control panel" but can't find the product key anywhere. So i'm forced to use Office starter alone which has limited functionality. Responses to solve these issues would be appreciated.