From the Home screen, touch and hold the Recent
Apps Key (in the Touch Keys bar) > Settings > Storage > the Menu icon
(at the upper-right
corner of the screen) > USB PC connection.
Tap Media sync (MTP) or Camera (PTP) to connect to the PC.
The MTP driver may not be installed on your PC by default. The driver is dependent on the PC's versions of Windows® and Windows Media Player (WMP).