cant shut computer down

[Honda]

Hi
I am having problems shutting down my computer. I go through the normal
process start shutdown e.t.c but once my pc shuts down it is only off for a
couple of seconds and it starts back up again.
I think it might be a virus but im not fully sure, my cp is running a bit
slower than usual as well.
any help would be appreciated
thanks

 

[Unknown]

Check your BIOS settings. If wake on LAN is there, deactivate it.