I'm not sure why the Intel Driver and Support Assistant didn't detect it (wouldn't be the first time it let me down) but I think there's a newer driver for your Ethernet adapter here. Please try installing the appropriate x64 version. If there's an Intel PROSet item in your Apps & Features list I'd use that version. Otherwise, I'd use the non PROset installer. Then restart and see if that helps. I'm hoping it will cause a reduction in the number of ndis.sys ISRs and DSRs running on core 0.
