I’m sorry that was all I could think of at the time. Now SuperAntiSpyware (http://www.superantispyware.com) has some repair functions. From the Preferences button, Repairs tab and there is one which might do the trick (Remove Explorer Policy Restrictions), but I honestly don’t know exactly what it does, so there could be a risk involved. Read the Description of the repair, especially the bit about administrators if you don’t have an administrator setting any restrictions it might not be so bad, unfortunately I don’t know of any legitimate software that may apply restrictions.

I would suggest you do a google search for Remove Explorer Policy Restrictions and see what that brings and only when you are sure try it.

Also see, anti-rootkit, detection, removal & protection http://www.antirootkit.com/software/index.htm. Try these as they are some of the more efficient and user friendly anti-rootkit tools.