This happens on file that is within a domain.
From what I have seen so far this only happens with users that log in from a domain.
This solution is simple go to the following registry location in regedit:
Here you should change the
Then try to reinstall the program.
Another option is to create a new Admin User on your computer and install it that way. Below is a PDF that shows how to create a user account. https://docs.google.com/leaf?id=0BxY3ysueTgj9NWM3MjYwZjAtMTU5NC00NGFmLTk4YjEtMzBiYjRhNWJhMWRh&hl=en
Edit: Found more information on the topic. Corrected location of the registry.