Some relatives stayed the weekend and brought their computer for me to clean up. They have 2 teenagers and Norton has been expired for about 9 months. It was obviously polluted with Adware so I uninstalled Norton and went as follows- Installed NOD32 and it was going crazy finding Adware and Trojans upon bootup and during a scan. I let it clean, but while NOD32 was excellent at detection, it wasn't great at cleaning up this big of a mess. Next, installed Sunbelt Counterspy and did a scan. It found hundreds of infections, but again, the cleaning was insufficient (after reboot Trojans and Adware would still be found in memory). Finally, installed Ewido and scanned. It found 192 malware items, and after cleaning, it said it cleaned 192 items. Reboot and done. Malware gone. My conclusion- NOD32 is excellent first line of defense and would probably keep a clean system from getting infected with Adware and Trojans in the first place. I also concluded that Ewido is an excellent Spyware/Adware/Trojan remover and was better than anything I have ever used for this purpose. Ewido saved this PC. I will likely keeping using NOD32 and periodically scan with Ewido as a backup on my own PCs. But what about my visitors who didn't know anything about PC security- I told them about layered security and setup them up for now with free apps that are easy to learn- AVG Free Antivirus (much better than nothing and very easy to use for newbies) Zone Alarm Free (Again easy to use) plus I told them how this could prevent trojan downloaders, etc. if they denied unknown applications. and finally Ewido free (but since they have no real time spyware/adware protection, I recommended that they should consider purchasing Ewido) Also, introduced them to Firefox and took the IE icon off of their desktop.