Believe it or not - when your dealing with antispyware - windows defender isnt half bad. Though it is by no means exhaustive.
http://www.symantec.com/security_res...012-99&tabid=2
Symantec's writeups are second to none (wish their AV was) - this could be used to manually remove the trojan and the registry entries related to it. Kill the processes associated with it (in this case
nvctrl.exe) and delete the files referenced including all your temp stuff. Once that is done - clean the registry of the keys involved - see the removal tab as well for assistance on part of that. Make sure you reboot after that. Also would be smart to make sure you have an antivirus program running and up to date definition wise at all times.
Windows Security Center will never tell you or advise you to download a non-microsoft program.