Hi Wiffles.
Type "msconfig" in the windows search bar at bottom left.
In the new menu that opened select the boot tab.
In the boot tab click on advanced options.
In the advanced options make sure the number of processors option is not checked. If it is uncheck it and reboot
thank you Nemesia this worked and I now have all 4 of my cores and all 12 threads being utilised![]()