Solving Hardware Installation Problems - HP ENVY PRO Maintenance & Service Manual

Mouse does not respond to movement or is too slow.
Cause
Program in use has stopped responding to commands.
Mouse may need cleaning.
Mouse may need repair.
Computer is in Sleep state.
Mouse will only move vertically, horizontally, or movement is jerky.
Cause
Mouse roller ball or the rotating encoder shafts that make contact
with the ball are dirty.

Solving hardware installation problems

You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or
expansion card. If you install a plug and play device, Windows automatically recognizes the device and
configures the computer. If you install a non-plug and play device, you must reconfigure the computer after
completing installation of the new hardware. In Windows, use the Add Hardware Wizard and follow the
instructions that appear on the screen.
To open the Add Hardware Wizard, open a Command Prompt and open hdwwiz.exe.
WARNING!
board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect
the power cord from the wall outlet and allow the internal system components to cool before touching.
76 Chapter 7 Troubleshooting without diagnostics
When the computer is plugged into an AC power source, voltage is always applied to the system
Solution
1. Press the Ctrl and Esc keys at the same time (or press the
Windows logo key) to display the Start menu.
2. Use the arrow keys to scroll to and select the power icon at
the top right on the menu, and then press Enter.
3. Use the arrow keys to select Shut Down, and then press
Enter.
4. After the shutdown is complete, plug the mouse connector
into the back of the computer (or the keyboard) and restart.
Shut down the computer using the keyboard then restart the
computer.
Remove the roller ball cover on the mouse and clean the internal
components.
See the Worldwide Limited Warranty for terms and conditions.
Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep state, do not
hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Solution
Remove roller ball cover from the bottom of the mouse and clean
the internal components with a mouse cleaning kit available from
most computer stores.