Ram Usage

Greetings,
My laptop has got 2GB RAM, but only 1.86 GB is usable,
Why and how could I use it completely?
thanks ahead
Kian William

Most likely the difference is in use by the video system. This is very common in laptops.

Thanks to all of you for the responses, here is what I have found in microsoft website:
This is expected behavior on computers that are running Windows 7. The reduction in available system memory depends on the configuration of the following:
The devices that are installed in the computer and the memory that is reserved by those devices
The ability of the motherboard to handle memory
The System BIOS version and settings
The version of Windows 7 that is installed (For example, Windows 7 Starter Edition only supports 2 GB of installed memory.)
Other system settings
for a complete details you may go to:
https://support.microsoft.com/en-us/kb/978610
Kian William Nowrouzian

whs said:

Guys, none of your good advice will help the OP. He is merely looking at a math problem. If you never learned to calculate in binary, it will be difficult to understand. Just take my word for it that the OP has absolutely no problem.

While Hard drives are specified by the manufacturers in Decimal and it is necessary to relate that to binary within the computer, RAM is not specified in decimal.

2Gbs of RAM is 2GBs, and will show as 2GBs in the computer.

My guess is some RAM is used by some other function, e.g. graphics.