Currently I am using the trial on my son's Inspiron Windows 7 64 bit. Lately every time a run a scan it finds hundreds of threats, some serious. I quarantine/remove them but still suspect a problem. I do another scan and find hundreds of threats again moments later. This time I did a critical point scan and it found over 500. During the removal process it stopped at 200. I ended the scan and the remaining threats were the right amount (the original number of threats less the ones it removed before freezing) so I was hopeful but it froze after 10. I did this again and it is frozen after 1. I guess this is a 2-part question because I am concerned that the removal process is stuck and I don't understand why the computer is still vulnerable. Thank you