No problem.

Gotta love information technology, so there are always [many] other options
to correct your problem

From what you wrote, (a) you are infected with something and (b) your
current A/V and Security solutions are not installed and working properly.

I wrote the guide to assist my folks when they had a bad infection and I
wrote it as a "throw the whole kitchen including the sink" approach to
correcting any generic malware or spyware infection. So, there are less
invasive ways to clean up your machine that is specific to whatever you're
infected with.

As for the issues with NAV and NIS, the software isn't running properly.  If
you give Symantec a call, their support will most likely ask you to remove
and reinstall the software so that it functions correctly.

NIS and NAV running simultaneously is not a good thing.  
After you uninstall both apps.
Install and run NIS alone and see if things work out better for you.

Remember with an infection, you've already let the burglar into the house
and re-enabling your home security system afterwards--you need to disinfect
whatever is a foothold in your system.

Good luck.

Time to learn NAV/NIS removal/reinstall, safe boot, and spyware removal!
Thanks again to Phil and BAR.