Reinstall Touchpad Driver
1. Download the drivers
2.Click the "Download" button and then click "I agree" to save the Lenovo touchpad driver installation file to your computer.
3.Double-click the EXE file that you downloaded. Doing so opens the driver's installation wizard.
4.Follow the on-screen prompts to re-install your Lenovo's touchpad drivers. If your locked touchpad is due to a corrupt or outdated device driver, then your touchpad is now unlocked and functional.
1.Hold the Windows logo key and press the R key to open a run command box.
2.Type "control mouse" in the box and press Enter. The Mouse Properties control panel window opens.
3.Click the "Device Settings" tab.
4.Click the Lenovo Touchpad in the "Devices" list and click the "Enable" button to activate the Touchpad.
5.Click the "OK" button to save your changes. Your Lenovo's touchpad is unlocked and ready for use.