HP Pavilion dv4-2116tx Entertainment Notebook PC - Manual (Page 49)

Setting TouchPad preferences
Use Mouse Properties in Windows® to customize settings for pointing devices, such as button
configuration, click speed, and pointer options.
To access Mouse Properties, select Start > Devices and Printers. Then, right-click the device
representing your computer, and select Mouse settings.
Connecting an external mouse
You can connect an external USB mouse to the computer using one of the USB ports on the computer.
A USB mouse can also be connected to the system using the ports on an optional docking device or
optional expansion product.
Using the TouchPad 37