I'm not sure what kind of virus this is but my friend is IT and told me that it was most likely a Trojan rootkit virus. Symptoms: redirect to advertisements when clicking on links and ads popping up in the bottom right and left hand corners of my web browser. This also extends to Steam and all web browsers, not just Firefox. At first my computer would blue screen or force restart after 5 minutes of being turned on, but that has stopped with some tinkering of the registry files. Microsoft security essentials stopped working for a while, but we got it to start working again. And the last thing we fixed was command prompt opening and quickly closing each time the computer was restarted. The only thing left by the virus now is what happens on my web browsers. This is my first time here but I am willing to do whatever is asked of me the moment its asked of me. I have read the posting guidelines. Thank you for your time!