Norton can't remove trojan.patchep!sys and services.exe

I seem to have unexpectedly contracted this malware and have ran several programs to get rid of it but it is still im my computer. I've tried system restore but really do not want to reformat. Can someone help me please?

 

Toshiba Satellite A505-S6980

Intel Core 2 Duo T6600

Windows 7 Home Premium 64-bit