Most computer software and games have minimum system requirements needed on your computer to run the program. Below is a quick and easy way to find out what specifications your computer currently has.
Go to Start > All Programs or Programs > Accessories > System Tools > System Information
This will show you your computer's Operating System, how much memory and hard drive space it has, it's processor, etc. You can use this information to confirm you have the minimum system requirements for the software or game you would like to install.