Maximum+Memory

Maximum Memory The first step is to right click on the task bar and click Task Manager.  Go to the performance tab and look on Physical Memory (MB), and see what it says. If this shows Total 6000 (or about), then you are fine and what you are seeing is the memory being used by your operating system in normal daily usage.  The Available number is the important number and is what programs have left over to use after the current programs/items are loaded.  Windows will manage your memory to optimize caching as you load and access programs, so this number will change. 

If the Total Memory shows as 2048 GB, there may be a start-up setting that has been altered, forcing Windows to use only 2 GB of memory instead of the maximum available. You can edit this boot option by first opening **__msconfig__** by holding down Windows Key and the letter R (or going to Start then Run) and typing **msconfig, ** and pressing Enter. In **msconfig**, click on the boot tab then click on Advanced options. Ensure the Maximum memory checkbox is unticked/checked. If it is ticked/checked (most likely, if Windows is not showing the full installed memory) then untick/check the box, press OK and reboot your computer. When your computer restarts you should now have the full installed memory available for use by windows.