Even with drivers installed, your Vaio may behave oddly. Apply these fixes:
The most reliable way to fill driver gaps is using the Windows Device Manager . Right-click on items with yellow exclamation marks and select "Update driver" to let Windows Search find generic compatible versions. Sony Vaio Pcg-81114l Drivers Windows 10
Updates like the "VAIO Firmware Extension Parser Driver" are occasionally updated for security and functionality. Even with drivers installed, your Vaio may behave oddly