Last week I had an alert popup,saying I had a trojan that could'nt be quartined. It said to restart and then run scan,which I did,but as soon as I open my internet explorer the same message popped up again.I closed down and then ran the scan again,same thing happened again.After the 3rd time my computer wont get past the administrator login screen.It will load my settings the automatically,saves and closes down.What should I do?
Have you tried scanning the system with McAfee's command line scanner (from a SuperDAT file)? The best way to use that is to boot up the computer off a bootable CD/DVD/USB flash drive that has BartPE or WinPE installed on it. That will allow you to scan all files in the original Windows environment, even those that would have been locked in memory.