what is Process:System User:System Description:NT Kernel & System !?

I have windows Vista 32-bit SP2 There is a suspicious Process Named only System (no .exe or .dll !),User is System and with description:NT Kernel & System when I right click and select properties it doesnt show anything and I cant find where is its location and “Uniblue Process Scanner” doesnt display it in scan results
after searching I found a lot of people have problems with high cpu usage of this process but it doesnt have any CPU usage for me ! a lot of people say its a virus but I scaned the computer with antivirus and antimalware programs but process is still there,also in comodo active connections it has at least 1 outbound connection all the time and when I choose show full path it stays the same and I cant locate it !
what is this process !?