Determine How Much RAM You Have

Open the Start menu by either pressing the Windows key on your keyboard or by clicking the Windows logo on the Taskbar. Once it opens, begin typing "System Information". Once it appears in the list of results, click it or press Enter if it is highlighted. See the example below.

Once System Information opens, it will show a system summary which includes various pieces of information. Look towards the bottom of this list for a line that says "Installed Physical Memory (RAM)." The number provided here is the amount of RAM you have installed. See the example below.