[John Rogers]

You did not mention if you have 32 bit or 64 bit OS? If you have 32 bit you are already wasting some of the 8GB you have now so it does not matter (according to HP's website and 32 bit Windows specs). If you have 64 bit you can add them, just a little more for larger documents or videos, etc. I did notice that the PC specs say Windows 8, 64 bit, so if you use what came with it, use the extra RAM.