So, I know trojans are bad but what exactly are they? I have used limewire but deleted it recently. I am also very sad to say I have visited a torrent site however I haven't downloaded anything from it. If I do have a trojan how can I remove it and if possible for free? Please help me I'm quite embarrased about how I may have gotten it but I'm so so so upset I really don't want anything bad to happen to my computer. Any help is appreciated.