Virtual Memory - What is It? "Virtual memory is when your computer uses the hard drive as a memory relay once your real memory has been used up. This usually starts happening when someone has installed new programs or is using multiple large programs at one time. Have you installed something new recently, or changed how many programs you are using at one time? Does it seem to occur when you are using a specific program, or perhaps after running a specific program for a longer than usual period of time?
