I ran Malwarebytes anti malware program and it detected KoobFace worm virus. I sent it to quarantine and restarted my computer. After being back on the internet I went back and did another scan. This time as some people had suggested, I turned OFF "Restore Point" and restarted my comupter in "Safe" mode. Malwarebytes again found the virus and so I quarantined it again and did a normal restart. But again I ran another scan after being on the internet, the virus is still there?? I just keeps coming back? It appears that Malwarebytes although detects the KoobFace worm virus and quaratines it, it cannot fully remove it?? Any suggestion as to how to permanently remove this trojan virus without spend money a purchasing new malware removal software?