You do not have permission to change CATALYST Control Center settings
Many have come across this and after time i managed to find a fix ..
Here is what you do:
1. Open your services (Start->Control Panel->Administrative Tools->Services)
2. Find the "Windows Management Instrumentation" service
3. Right-Click on it and select "Stop"
(leave this window open)
4. Browse to your System32 Directory (Start->Run. Type "C:\Windows\System32" and click "Ok" button
5. Look for a directory named "wbem"
6. Open this directory (double-click on wbem name)
7. Rename the directory named "Repository" to something like "Repository_OLD" (right click on the "Repository" directory name and select "Rename" and type the new name for the directory and press Enter)
8. Close the window
9. You should be at the Services window again. If not, repeat step 1 to get the services window back open.
10. Find the "Windows Management Instrumentation" service
11. Right-Click on it and select "Start"
12. Reboot
That should do it.. It did for me ...
