operating systems like the man said bellow depending on what you have go to a 64 bit addition os and you can use up to 8gb of ram below that and the max is 3gb.

were they got 32GB of RAM from i don't know the max slots for ram a motherboard offers is 4 the max amount of memory per stick is 2GB 4x2=8GB Which I would recon as max. To utiles that amount of RAM you need each stick to be running 8GB of RAM which they don't sell. So as for the 32GB of ram I think its goon wrong somewhere or I'm way behind.