If you find yourself working on a computer that is locked down and are in need of doing some tasks that required administrative privileges, the following command might be helpful. This can be done directly from the "RUN" command window.
runas /user:Domain\Admin "C:\WINDOWS\explorer.exe /separate"
Replace the yellow highlighted text with your own credentials. The credentials can be for a domain or a local admin user. The light-blue text represents the application you are trying to run with elevated rights.