Some downloaded drivers are just folders with .inf files.

Boot into your BIOS by tapping F2 right after pressing the power button. The "Product Name" listed on the main screen will show the precise VPC model number. Phase 2: Essential Drivers & Installation Order

Enables multitouch gestures. Installation Tips & Best Practices

A common issue on many Sony Vaio laptops is that the Wi-Fi hardware switch stops working after a fresh install. You may need to install the VAIO Event Service or Smart Network utility, found on the same driver pages, to restore switch functionality.

Powers the internal speakers, headphone jack, and internal microphone.

You can visit the Sony eSupport Downloads page to look up legacy models.