How do i get my random access memory back.?

When you install Windows the system sets up your Virtual Memory to about 1? times the size of your RAM. It also takes into account the size of your Hard Disc drive and allows approx 10% of it's free space size. So if your disc is nearly full it will start to have problems.
First thing to stop your problem is to not to have too many programs open at once. Although you not actually using them they are running in the background and taking the RAM's resources which then overspills into the virtual memory.
Another way to help is if you right click on My Computer ? Properties ? Advanced ? Performance ? Advanced ? Virtual Memory ? Change the button setting to "System Managed Size" ? Click on Set ? Apply & OK ? The system will now ask you to reboot for the settings to take effect ? Click on OK.
This now allows the system to be flexable and can adjust the Virtual Memory as required with out being fixed between two parameters. With a bit of luck that should solve your problem!
You also might want to think about increasing the size of your RAM.

right click my computer and choose properties and then choose advanced system properties. Then under advanced click on the settings button under performance. click advanced and choose change under virtual memory. This should be set to 1.5 times the size of your actual memory, or just let the system manage it.