HP ENVY 17-k 201na Notebook. Power through Windows 8.1 like never before. The full-featured HP ENVY Notebook is optimized for the ultimate Windows 8.1 experience so you can power through your day. Get the ultimate Windows experience with the Full HD display optimized for Windows 8.1. Switch snap & close apps quickly & easily with the new HP Control Zone trackpad. Access Windows 8.1 controls using dedicated gesture zones on either side of the trackpad. With Beats Audio dual speakers & a subwoofer the HP ENVY Notebook is designed for the best-sounding richest audio on a PC.