Many users report that the Sony touchpad software, which allows disabling the touchpad when a mouse is connected, is incompatible with Windows 10. The hardware itself will likely still function as a basic pointing device.
Enter the BIOS by pressing F2 or using the Assist button while the laptop is powered off. sony vaio pcg81114l drivers windows 10 install
The first-generation Core i7-720QM processor in the PCG-81114L falls below Microsoft's recommended processor generations for Windows 10 (Sony recommends at least 7th-gen Intel Core for optimal performance). Consequently, you may experience: Many users report that the Sony touchpad software,
Confirm your specific sub-model (e.g., VPCF115FM, VPCF117FX) found on the underside or bezel of the screen. You can try to find compatible versions on
This is often the "Unknown Device" under System Devices. You can try to find compatible versions on the VAIO Support Site or by using Windows Update's "Optional Updates" section.