I personally like to configure it myself (the less I leave up to Windows, the better
). Tell it to configure manually, and remove the paging file from your "OS" partition. Set up a new paging file on your "Gaming" partition for roughly 1.5x how much RAM you have (in your case, about 6,000MB). This should also be what Windows recommends you use. The only down side, is that you lose 6GB of HDD space, but if you ever need the space, you can always return and decrease the size of your paging file. It's not really necessary to have such a large paging file with 4GB of physical RAM, but it doesn't hurt.