1. Go to http://www.symantec.com/security_response/writeup.jsp?docid=2014-111020-0511-99
2. Click "Download Removal Tool", follow the instructions, then look on your Desktop and read fixpoweliks64.txt for results.
I've been dealing with this nasty virus for over a month. It has cost me many hours in lost productivity, keyboard and mouse freeze-ups, display resets, and reboots. NIS couldn't remove it for reasons unknown, but continued to give me popups with "Trojan.poweliks removed". Next day, problem repeated.
Then I did a search on "poweliks" and found this removal tool. Works for me.
Hope this helps.