Connect your tablet to the PC via the USB connection

After a few seconds, during which the two computers are negotiating the connection, a small USB icon will appear in the toolbar at the lower right, near the clock

Touch the toolbar clock and in the pop-up menu that will then show, touch the "Turn on USB storage" entry.

In the window that then opens, touch the "Turn On USB Storage" button that appears near the bottom of the frame

You now have files access to and from the PC, and can up and download files to eiher the micro USB card (if fitted) and/or the internal storage memory. [:o)