Trojan.Zeroaccess!inf4

Hi

 

My computer is infected by services.exe (Trojan.Zeroaccess!inf4). Auto-Protect detected this and blocked it. Norton Antivirus says a manual removal is required but I am still unable to remove the it.

 

I am on Windows 7 64-bit.

 

I have no idea what to do next and I'd really appreciate some help.

 

Thanks