Problems with Installation

Brenna, Do you have any other security software installed on your system?.
AVG Guru

So I'm trying to install AVG Internet Security onto my new computer.  I follow all the prompts, enter in my lisence code, and wait for the wizard to finish.  However both times I have attempted to install, the wizard tells me that the watchdog service failed.  What do I need to do to make this work?
Brenna, Do you have any other security software installed on your system?.
AVG Guru