Windows 10 forced me into an update on Thursday evening and everything seemed to go off without a hitch. Or so I thought. I did notice at the time that for some peculiar reason Intel HD Graphics drivers were now being used in place of the GeForce 940M instead of the NVidia drivers. So today (Saturday) I reinstalled the NVidia drivers and everything was working fine again.
I had some video to re-encode with Handbrake today and after about five minutes I noticed that the noise from the CPU fan didn't kick in like it usually does. So I had a look at the 'Resource Monitor' and it averages around '60% Maximum Frequency' which I thought was very odd because it's almost almost around 100% when using Handbrake every single time.
Stranger still I launched the Intel Extreme Tuning Utility and it says my quad core i7 CPU frequency is 1.61GHz currently running at instead of the usual 2.60GHz like it always is when rendering video. It also said the thermal throttling wasn't active.
Believing it is likely all these issues were tied to the Windows 10 Update, I thought my best approach was to do a system restore, but again for some peculiar reason it won't let me roll back any further than today. So I'll never find out if the Windows 10 Update is truly the cause that way.
Has anyone else encountered this problem or have any advice on what I can maybe do to restore the 40% processing power I seem to have lost? I've gone into the 'Power Options' in 'System Settings' and set everything to 100% yet it makes no difference.