Hi,
Follow this procedure to disable the touchpad.
Click the Start button, then click VAIO Support Central.
In the VAIO Support Central window, click on the Categories tab.
On the Categories tab, click the Plus (+) symbol next to Keyboard and Mouse.
Under Keyboard and Mouse, double-click Built-in Pointing Device.
In the Built-in Pointing Device window, click to clear the Enable box.
Click the OK button.
In the Built-in Pointing Device dialog box, click the Yes button.
http://www.fixya.com/support/t7419600-like_disable
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