First of all download the link below:
then run it and uninstall the trend micro installation and any other programs like old expired anti-virus, that you don't want.
afterwards if you want an Anti-Virus on your machine you might try Avast. You can get it at the link below INSTALLED for you for free. The Avast has two versions Free and Paid. when it is installed it is free. If you want to upgrade then purchase the paid one. But I will tell you right now I cannot remember the last time that I had paid for a Anti-Virus.
Once you have Avast installed make sure you run a FULL SCAN of the HARD DRIVE. Good Luck.