Presets let you save or load the various hair settings.
Save your work:
Now that you have adjusted the hair parameters, you will save a hair preset for later recall.
Load a new preset:
In the Tools rollout > Presets group, click the Load button.
The Hair And Fur Presets dialog appears. The preset you just saved is displayed in a thumbnail called Brown_Hair.shp.

Double-click the platnumBlond.shp thumbnail to load that Preset.
Render the Perspective view to see the results. The character now has light blond hair, but the parameters need adjustment.
Presets are a good way to load hair settings, but often you need to adjust the preset parameters to get the effect you are aiming for. In this case, it looks like the hair ought to be finer and straighter than the default settings show.