Enabling Usb Legacy Support - HP Compaq Series Hardware Manual

A USB device functions in the same way as a comparable
non-USB device, with one exception. By default, USB devices do
not function unless an operating system that supports USB is
installed in the notebook.
Some USB devices might require additional support software,
which is usually included with the device. For more information
and software installation instructions, refer to the documentation
included with the device.

Enabling USB Legacy Support

You must enable USB legacy support to:
Use a USB keyboard, mouse, or hub that is connected to a
USB connector on the notebook during startup.
Use a USB keyboard, mouse, or hub that is used in a
non-Windows application or utility.
Boot from an optional external MultiBay.
To enable USB legacy support:
1. Turn on or restart the notebook.
2. Press while the F10 = ROM Based Setup message is
f10
displayed in the lower left corner of the screen.
To change the language, press
For navigation instructions, press
3. Select Advanced menu > Device Options.
4. Select Enable USB legacy support.
5. To save your preference and exit Computer Setup, select
File > Save Changes and Exit, then follow the instructions
on the screen.
Hardware Guide
External Devices
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