Okay, this if for when you are already on Admin and you still get this error:

How to fix it.
Download this file, it will check for adware that stops you from being able to play on PB servers and fixes the problem even if you don’t.
http://tools.zerosrealm.com/VX2Finder.exe
Click the “Find VX2.betterinternet info” button to make sure that you don’t HAVE this adware. If there are no files listed, go on to the last step.
If you find the virus, (it is usually 3 random named dll files)
Select all the files found.
Press ‘Delete These Files’.
The program will delete all files but one that will be deleted on reboot.
Allow program to reboot.
Once Restarted:
Press ‘Guardian.reg’.
Press ‘User Agent’.
Press ‘Restore Policy’.
Clicking on “find vx2.BetterInternet info” again should show all fields blank.
If you have no adware files, just click on the “Restore Policy” Button
-Elements