Find out how to check your PC's RAM and memory usage on Windows to see if an upgrade is needed.

You may assume that once your computer shows the correct memory capacity and applications run normally without any warnings, there is no problem. With RAM, people think it either works or doesn't.

Use the following suggestions if one RAM slot is not working on your Windows computer. The first thing you should do is check for physical damage. If your RAM slot(s) is damaged, it will not work.