If so, what should I be using? Annoyingly, I've just renewed it for another year. It says it's blocking a threat, and has removed a Trojan, but the internet still keeps crashing. I've now downloaded malwarebytes anti malware (the free one), and it's scanning at the moment and has found 3 objects do far. Am I doing enough? Would appreciate advice from people who know more than me please! Thanks in advance