In a VM (virtual memory) OS (operating system) the best sign of a good design is that there is ZERO FREE MEMORY. This means the OS has put every scrap of ram to work since it's the fastest access to anything.
Free ram is wasted ram.
Now back to the problem. It's not about free ram. And task manager does list programs and what they consume.
i have a hp vista computer (a1720n). a while ago, it was getting slow, so i thought i would upgrade the memory to help it out. that worked great, for a while. now, i notice that over half of the 3.0gb of memory is used up when the computer is just sitting here idleing. how can i tell what is using all of this memory, and then i will have to figure out how to turn off what ever the culprit is.