The steps to perform this procedure are detailed below, and a Video Tutorial also is available to show you the steps as they are being performed.
If the touchpad works intermittently, erratically, or without touching it, the problem may be caused by a recently installed piece of software.Troubleshoot the computer to see if the software is causing the problem.
If model-specific information is required to complete any of the steps in this solution, refer to the operating instructions supplied with the computer.
This problem may be caused by an installed printer that is not physically attached and turned on. Attach and turn on the printer and then start the notebook. If this solves the issue, contact the manufacturer of your printer for additional troubleshooting information.
Touchpad driver updates are available through the Drivers & Software section on the esupport.sony.com web site.
Because each of these steps represents a possible solution to this problem, check the touchpad status after completing each step.
It is advised to use the VAIO Care™ troubleshooters and/or hardware diagnostics to help resolve your issue.
Some VAIO® notebooks include a feature that allows disabling of the touchpad by pressing the Fn+F1 buttons on the built-in keyboard. Try holding down the Fn key and press the F1key to see if the touchpad is re-enabled.
Make sure that an external USBmouse is not connected to the notebook.
If the problem is that the pointer is moving around the screen erratically, make sure the touchpad is not accidentally being touched while using the keyboard.
NOTE: Try covering the touchpad with a piece of cardboard or paper while typing on the keyboard to see if in fact the touchpad is being touched while typing.
If the problem is that the pointer is moving too fast or that it is difficult to double-tap or double-click, slow down the speed of the pointer and the double-click speed.
Turn off and then restart the computer and, as the computer is restarting, press the F10key to launch the VAIO Recovery application. If the touchpad does not work properly while in the VAIO Recovery application, then the issue is hardware based and service will be required to resolve the issue. If the touchpad works properly, proceed with the rest of this procedure.
Exit the VAIO Recovery application and restart the computer in Safe Mode with Networking.
NOTE: The remaining step of this procedure will be performed with the computer in the Safe Mode with Networking mode.
Reinstall the touchpad drivers.
NOTE: The touchpad drivers can be reinstalled through the Drivers & Software link on this page.
Use the System Restore feature to restore the computer to a point when the touchpad was working correctly.
The troubleshooting steps listed above should resolve your problem. If you have completed all of the steps and the problem is not fixed, service may be required.