Vista - Windows Secruity Center

Okay, i recently uninstalled Avira AntiVir(free VErsion) and i was checking out NOD32, but since NOD32 only could last for 15 days i uninstalled it, and then i reinstalled Avira, But now, i open but the avira antivir control center and it says my AntiVir Guard is deactivated. I hit activate, does nothing... I go into secruity center, and under malware protection it shows i have Windows Def. and also Avira antivir, but i go to activate avira(the button says it's snoozing ) and i hit Turn On NOw, the UAC -like thing comes up, and i hit Yes i trust this program, and am ready to run it. Nothing happens.. I tryed reinstalling Avira.. nothin! Help please? Oh yea, other program i have is Malwarebytes anti-malware. And thats it.

That's normal if you did not use the NOD32 removal tool. Like with most security suites, the Vista uninstall does not work.
Completely Uninstall Nod32 Antivirus with Free Nod32 Removal Tool

Thanks! But, i have a question Is their like a TOTALLY free-version of ND32, like not a 15 day trial? Because i really liked NOD. But the trial ver. just ran out..

Unfortunately not. Nod32 comes with a yearly fee. The prices vary and sometimes there are offerings with rebates. You just have to shop around - but totally free I have never seen.