Windows 10: Why is only the half of my physical memory available? RAM

Hey, I have installed 16GB RAM, the entire RAM is 15,9GB but only 9,4GB is available. Is this "normal"? Picture is in german sorry

:)

 

Why is my available physical memory is half what I have installed?

I have 12 gb of ram but I only have 6.30 gb of available physical memory. How would I be able to free up or restore it?

Installed Physical Memory (RAM) 12.0 GB

Total Physical Memory 9.94 GB

Available Physical Memory 6.17 GB

Total Virtual Memory 14.7 GB

Available Virtual Memory 7.18 GB

 

Windows uses half my physical RAM for Virtual

This happens in both 10 and 11. If I do a fresh install, it does not set up virtual memory reservations but appears during Windows Updates.

This is not a task or program Task Manager shows 12% RAM use

MSINFO shows:

Installed Physical Memory (RAM) 64gb

Total Physical Memory 63.7gb

Available Physical Memory 55.8gb

Total Virtual Memory 73.2gb

Available Virtual Memory 63.2gb

Page File Space 9.5gb

I have unplugged the RAM sticks, moved them to different slots, and used different combinations with the same 50% allocation to virtual in all instances.

 

Low available physical memory

Hello!

I have am HP gaming laptop with 8GB of installed memory, after fixing some other issues I had with it I launch Cities Skylines and notice the game was only using up to 4.5Gb of RAM, so I checked on system information and out of the 7.86Gb of the total physical
memory it only shows as available 4.35Gb. Checking resource monitor shows that nearly 50% of the memory is in use at any time.

I've read Windows 10 keeps RAM usage high but manages to allocate memory to processes that need it, but that's not happening, it's almost like half my memory is gone.

I am running 64bits Windows 10

Thank you!