Security Essentials suggested running Windows Defender Offline. I could not get it to boot from a CD, but I finally did manage to run it from a flash drive and the tool said it successfully removed the threat. However, when I restarted, MSSE said it was still there. I had already been planning on uninstalling MSSE, and I installed Avast tonight. I have also run a full scan of Malwarebytes Antimalware. While searching for a reliable removal tool, I kept seeing conflicting info. I'm just not sure what to do next to remove this, other than reformat and reinstall windows 7 home 64 bit. Are there any LiveCDs I should try? Or any other suggestions? Thank you!!