high memory and cpu usage 3.30 Ghz and 16 GB ram !

[Elisaeus]

Hello everyone. Recently my pc seems to consume much more resources than I feel it should. As exemplified by the attached picture.
http://i.imgur.com/cvXnE9m.png
Witcher 3 is a resource intense game but when smaller games and other processes start using as much memoery as system idle or svchost it got me worried.
In idle state I was using about 30% CPU and in game 60%. I thought the pc might be overheating so I installed better fans and it seemed to calm down, no more high cpu usage.
However I still have issues with physical memory in that it causes lagspikes and freezes.


name it its there pic of my specs and such

http://i.imgur.com/DMI2qxr.png

my motherboard

http://www.amazon.com/Gigabyte-CrossFireX-Motherboards-GA-X99-GAMING-WIFI/dp/B00MPIDZCK

RAM cards

http://www.amazon.com/Corsair-Vengeance-2x8GB-17000-Desktop/dp/B00D7EL0PK/ref=sr_1_fkmr0_2?s=electronics&ie=UTF8&qid=1431026043&sr=1-2-fkmr0&keywords=orsair+vengeance

my graphic card is GeForce GTX 780 Ti, 3GB, but i don't think that's whats causing the issue pleae help i put too much money into it to not have stupid errors like this

 

[ClassicD]

post image of your resource monitor...memory tab.

run memory test mdsched.exe within windows RE.

your CPU using up to 99% of system idol is fine along with the svchosts...if you think the svchosts is using too much open cmd and run...tasklist /svc...a few times i have nailed this down to windows updates (wuauclt, wusa) etc