Anthony wants to increase the RAM in his laptop. Leo says that he can do that with a special SO DIMM RAM, but he'll need to find out if he can. He can go to iFixit and look it up with their online manuals. Once done, he can go to either Kingston.com or Crucial.com and use the RAM picker to find out what RAM he'll need for it.
Anthony will have to open it up and while he's got it open, why not replace that hard drive with an SSD as well? That'll really make his laptop scream. Another option is to run Linux instead. It can run that older laptop better than Windows. Leo Likes Linux Mint.