This link from McAfee will assist you in removal of thisRequired Reading - Home User Assistance Malware Troubleshooting
When you have completed the above recommendations in the link you could also try running http://www.malwarebytes.org and http://www.superantispyware.com both of these programs are free and catches a lot of stuff. I suggest you download these programs to a usb stick and rename the download file and installation folder to something you can easily remember as malware is written to self protect itself. Renaming these should not pose a threat and hence you should be able to get them installed on your computer. Make sure you check for the latest updates and run the program and let it clean everything it finds and then reboot and do the same procedure for the other program.
Let us know how this works for you.