Latest post of the previous page:
I believe the 33% reserved for hardware is unused until you operate a hardware drive etc its sat ready but doing nothing, then the other is being usedwhen your machine calculates through the system it will only use the available where as there is actually MORE there but the machine reserves it
If you use it all for memory the machine should calculate quicker and if you use hardware then only the required amount is allocated and the RAM is used at the best division internally.
I tend not to use the resource monitor (it uses a lot of resource) though your post has got me wondering about my system even though I know it is faster than if I allow Windows to control it!
I do only run the very minimum OS that i require unless I'm remotely logged onto the wife and daughters computers and then seem to run a lot of stuff which I have no interest in.