Hiberfil.sys can use several GB of hard disk space. Delete the file, and it will likely return. Bill Detwiler explains how to get rid of it for good. In a previous TR Dojo Challenge question, I asked ...

We’ve reached a point where it can be assumed that most mid-range and higher desktops and higher-end notebooks will ship with solid-state drives as the default option. It’s a good thing, too, since ...