Recently conned into opening a message purporting to have come from a friend which caused my laptop to send the same thing to friends.. Changed FB password; did a Webroot scan which found nothing;downloaded Malwarebytes and did a full scan. This found 2 trojans and quarantined. Restarted laptop. Opened IE 8 which promptly closes "to protect my computer"mentioning Data Execution Prevention. Does this mean laptop still infected? Google Chrome works fine. Any help much appreciated.