Adware Viruses

About a week ago I started to get Adware viruses and some trojans on my computer. Norton 360 would not detect them in a scan, but Malware Bytes did. I removed 14 infections with Malware bytes yesterday, and now I got more Adware viruses. How do I keep on getting these viruses and how does Norton 360 fail to detect them?

 

I am using Norton 360 V4. Operating System is Windows Vista 64-bit Service Pack 2.

 

Thank you.

Oh, sorry about that. But can you help me out?

About a week ago I started to get Adware viruses and some trojans on my computer. Norton 360 would not detect them in a scan, but Malware Bytes did. I removed 14 infections with Malware bytes yesterday, and now I got more Adware viruses. How do I keep on getting these viruses and how does Norton 360 fail to detect them?

 

I am using Norton 360 V4. Operating System is Windows Vista 64-bit Service Pack 2.

 

Thank you.