Windows 10: 16 gb ram but only 6.94 usable

AMD A6 7400K Radeon R5. 6 Compute Cores 2C + 4G 3.50ghz

64bit. Windows 10


How do I get the rest of my memory?

:)

 

3.46G Usable instead of 6 gb ram

Previously, I have installed 32 bit version of Windows 10 when my ram is 4 gb (1.71gb Usable), after it, I installed 64 bit version of windows but the usable ram is not icreasing. I upgraded the ram to 6gb but the usable ram is 3.46g, I want to increase
the usable RAM size, anyway?

 

winodws 10 24 gb ram installed only 16 usable

I just upgraded from win 7 home premium 64 bit to win 10

I know that the windows 7 version I had only went up

to 16 gb of ram but I thought that Windows 10 had up

to 128 gb limit.

It still shows in the system that 24 gb is installed but only 16 is usable

anyway to fix this, or do I need to try and create an install disk to do

a clean install?

My mb supports up to 32 gb ram

 

Why 2.66 GB usable in 4 GB ram?

Thanks to everyone for their valuable suggestions. I guess the problem was with the OS.Because after increasing my ram from 4 gb to 8 gb still the usable memory was 2267 mb out of 8 gb, then I did a clean install of Windows 7.Now everything is fine and smooth, and usable memory is 7.9 gb out of 8 gb.