New
#41
The removal tools are the correct way to remove this type of anti-virus suits as the windows uninstaller does not have an accurate log file to uninstall certain components, many problems can result, depending on the SW that you potentially had, for one example instance is that some can lock files such as the windows restore point images. Otherwise viruses can use this exploit to reset themselves once removed. So the intended purposes are generally positive, but when removed many relics remain behind and therefore a method is created by the manufacture of each AV app to uninstall it properly.
Norton trial may have been included with your OEM windows, and Mcafee possibly as well without your noticing it. But irregardless, you should run the programs To BE SURE, if the software was never present. it will not do anything.
And since you said you did remove avast (I believe), I am guessing it was through windows control panel software removal tool and this needs to have the Mfgr's uninstall run for sure. Finding versions and what type of package it was may be difficult. I'll see what the sites say about this possibility, if anything.