I've Norman anti-virus software on my laptop but I started to think I'd have a little extra security. I've this anti-spyware program called Spybot Search & Destroy on my desktop and I like it so I could install it on my laptop too. I still know there are few anti-virus/anti-spyware/anti-etc programs that don't agree with each others. Now I ask if somebody knows if Norman works with Spybot S&D (the only thing I know Spybot S&D works with F-Secure well...)
I've also Windows Defender on my laptop if it has impact on the things.