I have 4GB or RAM installed but Windows 7 x64 shows only 1.93GB of it is usable
39480
Installed memory 4GB but only 1.93 GB is usable shows in system properties dialog?
29533
Why is all my extra RAM marked as "hardware reserved" in Windows 7?
104504
Why is my "Committed" memory so much higher than my actual RAM space?
89453
Can Ubuntu use all my 4GB of RAM?
149896
How can virtual memory be greater than the total available space?
158641
How do I determine how much RAM I actually need?
100732
What limits a motherboard from supporting more memory?
35567
Where has all the RAM gone?
53293
What is the maximum RAM supported by the desktop and server editions?
148186
12GB of RAM only 8GB is usable on Windows 7 64-bit
12600
Lots of ram. How to use it?
139864
How can I dump the memory of a process in Windows 7?
130713
How can I find out whether my Windows is 32 bit or 64 bit?
96780
I had 6 GB RAM, now Windows is telling me I have only 2 GB. Where's the other 4 gone?
134867
The computer has 48GB memory (or memories?)
57157
Making Windows XP run on 256MB of RAM
81814
Windows 7 / Page File Disabled / 12 GB RAM / 2+ GB RAM free and "your computer is running low on memory"