How to Check How Much RAM is on Your Computer
Random Access Memory (or 'RAM' for short) is the memory your computer uses to operate programs. The more things you have running at once, the more RAM you require. Having too little RAM will also cause your computer to run slowly.
Open your Control Panel
Open 'System Tools'
Open 'System Information'
Look for 'Total Physical Memory' and 'Available Physical Memory'.
Consult with a professional or someone knowledgeable to discover if your computer would benefit from having more RAM installed or not. It's easy to install more and relatively inexpensive.