Memory / Cpu usage

[oxygene]

Hey guys! Got a small conundrum here. My computer is regularly warning me I am low on memory, and I'm not sure whats using it all up.

Before anyone shouts 'Task Manager' at me, the most memory usage at this very second is 2.1gb by Ark (testing it out this weekend), and I have 16gb am. I cant see how all the rest of the system is using up so much.

I have a webcam I use for security sake as I live in a bit of a dodgy area and like to keep an eye on my car, and that apparently uses up 20% of my cpu at any given time :/ but memory isnt very high on it, 100mb, and thats the second highest on the list.

http://imgur.com/UpiyeLs
http://imgur.com/22H1DRl
http://imgur.com/Id28xIF

 

[oxygene]

whats the rest of your PC spec? are you running windows 10?

do you get the issue when gaming only or even when your just browsing the web?

Yeah apologies, I should have filled in more blanks here!
Its only when gaming. I'm thinking I may have discovered the issue though. The resource monitor was a bit odd, it said 3gb of Modified memory. No idea what thats all about! But I then realised I moved the page file a while back and have since upgraded to windows 10, so the changes may not have carried over.
Basically I have no page file! Which isnt ideal. I did it to save space a while back but now my OS SSD is a lot bigger so its all good!

Cheers for the help both of you!