I thought that's just for 11 and not 10?
Anyway, did an update to nvidia driver and Windows 10 had an update which I installed and the issue hasn't popped up again yet, so fingers crossed!
No, Windows 10 rolled out a big update as well.
Done some testing and I think it's only when I plugin an external monitor. Is that normal then for the CPU to be around 22% and power usage to be high plugging into one?
There was an update to nvidia driver and Windows 10 which I installed and am on the move this weekend and had no problems with it as laptop not been plugged in to any external monitors.
The power usage usually depends on the size and refresh rate of the monitor and which graphics card you're using, but in some cases it can increase power consumption considerably. 22% CPU usage due to a monitor is not normal.