Cannot remove System Security Suite 2012

I've tried numerous methods to remove this virus (I think that's what it is), including various standalone Norton removal tools. All to no avail. The one tool (NPE.exe) stated it removed 18 threats. Then, running it again, it removed 5 more. But the real threat still exists: System Security Suite 2012, which reposts numerous Trojan horses and bad processes, but is in fact the only real threat on the computer.

 

Any help?