HP ENVY 15-k 201na Notebook Enjoy 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. Discover HP Control Zone trackpad so you could switch snap & close apps quickly & easily as ever before. 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.