HP ProBook 4321s Notebook-PC - Manual (Page 120)

CAUTION: To prevent damage to a USB connector, do not pull on the cable to remove the USB device.
To remove a USB device:
1. Click the Safely Remove Hardware and Eject Media icon in the notification area, at the far right
of the taskbar.
NOTE: To display the Safely Remove Hardware and Eject Media icon, click the Show hidden
icons icon (the arrow at the left side of the notification area).
2. Click the name of the device in the list.
You are prompted that it is safe to remove the device.
3. Remove the device.
Using USB legacy support
USB legacy support (enabled by default) permits the following actions:
● Using a USB keyboard, mouse, or hub connected to a USB port on the computer during startup or
in an MS-DOS-based program or utility
● Starting or restarting from an optional external MultiBay or an optional USB bootable device
USB legacy support is enabled at the factory. To disable or enable USB legacy support:
1. Open Computer Setup by turning on or restarting the computer, and then pressing f10 while the
“F10 = ROM Based Setup” message is displayed in the lower-left corner of the screen.
2. Use the arrow keys to select System Configuration > Device configurations, and then press
enter .
3. Use the arrow keys to enable or disable USB legacy support, and then press f10 .
4. To save your preferences and exit Computer Setup, use the arrow keys to select File > Save
Changes and Exit. Then follow the instructions on the screen.
Your preferences go into effect when the computer restarts.
108 Chapter 7 External devices