That looks like it could be a memory leak in some program that you had installed before you upgraded.
Uninstall ALL old motherboard utilities, soundcard managers, any anything related to hardware that you used in your last OS.
I had similar issues, Windows 10 did not check the compatibility of my software which was set to auto-run. In the end my filesystem was left corrupt all the way through and I had to go to stupid lengths to recover what I could.
You need better tools to find out what exactly is doing this.
Download Process Hacker 2 at:
http://wj32.org/processhacker/rel/processhacker-2.36-bin.zip
Unzip and run the program as administrator. Then look through the real list of processes to find out where your things aren't quite right.
Post a picture of process hacker when you get the chance. Then I can help you fix this.
Edit: This appears to be driver related, look at your non paged pool. 5.5GB is ridiculous. Mine is at 122MB and I'm at 70% memory usage with 4GB of RAM.
Also see this thread, it looks like a similar issue back in Windows 8.1. Can't say for sure that it's the same problem, but can't hurt to check.
http://www.tomshardware.com/answers/id-2186507/solved-physical-memory-huge-paged-pool.html