I got Win 7 64 bit and 16 GB of RAM, but only 7,97 GB of RAM usable. Why? Please Help!

Rboss

Honorable
Dec 31, 2013
2
0
10,510
I got Win 7 64 bit and 16 GB of RAM, but only 7,97 GB of RAM usable. Why? Please Help!
I just saw this when opening Proprieties from My Computer. Can you please help me? Thanks in advance.