3 days ago my cpu was attacked by "smart engine" a rogue security system. I believe it was downloaded via a video codec. Not only do i get pop ups concerning security ,but task manager doesn't come up (no error message), my internet was also temporarily down (now seems to work). Same problems in safe mode. System restore was turned off so won't be able to do that. How can I access my task manager again and delete this virus? Thanks in advance for the help. I need this laptop for University!