Find the file by going start -> search -> all files and folder and then type the name of the virus there. Once you find where it is you can just disable it's permission to run. Go start -> run -> cmd, then type
cacls c:\windows\system32\jnciqoydlg.exe /p guest:n
This is assuming the file is in the system32 folder, if it's in a different one you just put a different directory in it's place. Scans are still a good idea but if they don't help give this a shot.