Ive watched some videos on youtube of a guy filling up a computer with viruses ,trojans , mal ,ad ,spyware and then
then he tests each of the anti virus softwares to see what they remove and how good they are and i can tell you this from what ive seen pretty much most antivirus software doesnt do much at all against mal,ad or spyware ............
I also hope your uninstalling all of those antivirus softwares before you put anotehr on. im going to warn you with
out a good uninstaller and by just uninstalling through uninstall programs chances are high you have files scattered all over the computer. you need to do a search and each of the antiviruses you installed and delete all the old files thats still left behind so it doesnt mess up your comp.....and cause errors .......
ok now onto your problem ...............
try this http://www.superantispyware.com/
download the one that says free version home users
then scan it
then go here this should fix all the errors your geting with +c i had those on my comp till i
used quick heal pc tuner http://www.quickhealuk.com/qh_trialversions.html
download the one that says
Quick Heal PCTuner - Free Fifteen Days Trial
then use it to clean disk, registry ,audio
let me know how all goes if your still haven probs after doin all i said we will go to the next step also
let me know when you reply back what antivirus you currently have on the computer