I turned the system back on to see what was going on and discovered the desktop was blue, then turned green with a message in the desktop saying the system was infected, etc. The desktop settings are also locked.
Norton failed to find anything. It's sonar detected and keeps detecting something called winupdate86.exe, and there are also various intrusion attempts being detected.
I have updated firefox and IE. All virus definitions are updated. Spybot search and destroy found a bunch of stuff and got rid of it. Norton finds nothing. Defender finds nothing. Microtrends free scan found several, and I also saw the Hijackthis link, explored and installed, but to be honest I have no idea which reg entries may be odd, so I have attached that file requesting a review.
The system is acting much better after running various scans, etc. The desktop display properties are locked still, and firefox at times wants to search out odd sites and run various tabs with what appears to be odd directory listings. I have set all settings to high and turned off cookies, deleted history, etc.
Please see startup and hijack logs.