Despite their importance, Sony touchpad drivers are prone to specific issues, often exacerbated by Windows updates. The most common problem is the "ghost mouse" phenomenon, where the cursor jumps erratically across the screen, usually due to a conflict between the touchpad driver and other input devices. Another frequent issue is the loss of gesture functionality following a major Windows feature update, which can overwrite the custom Sony driver with a generic Microsoft driver.
Troubleshooting these issues requires a systematic approach. The first step is the "Device Manager" utility in Windows. If the touchpad is listed under "Mice and other pointing devices" with a yellow exclamation mark, the driver is corrupted or missing. Uninstalling the device and scanning for hardware changes can force a reinstall. sony touchpad driver