To restore full functionality (volume, brightness, media playback, WiFi toggle, and sleep), you need the and the Sony Function Keys Driver . Step 1: Don’t Use Windows Update (It Rarely Works) Many users spend hours letting Windows Search for drivers. On a Sony Vaio running 64-bit Windows 10, Windows Update almost never delivers the correct Fn driver. You need to install it manually. Step 2: Download the Correct Driver Package Sony officially stopped supporting many Vaio models for Windows 10. However, the Windows 8.1 64-bit driver works perfectly on Windows 10 64-bit for 95% of Vaio laptops (S, T, E, F, and Z series).
sony-vaio-function-keys-driver-windows-10-64bit If you’ve recently upgraded your trusty Sony Vaio laptop to Windows 10 (64-bit) —or performed a clean installation—you’ve probably noticed one frustrating issue: the Function (Fn) keys no longer work. Sony Vaio Function Keys Driver Windows 10 64 Bit
Sony stopped making laptops in 2014, so don’t expect future updates. But this driver package will keep your Vaio useful for years. Have a specific Sony Vaio model? Drop the model number (e.g., SVS1511CFXB) in the comments, and I’ll help you find the exact driver link. You need to install it manually
Pressing might still type letters, but holding Fn + F2 (mute), Fn + F5/F6 (brightness), or Fn + F7 (projector) does absolutely nothing. SVS1511CFXB) in the comments
Don’t worry. Your keyboard isn’t broken. Windows 10 simply doesn’t include the proprietary Sony driver that translates those hardware commands.
Fix Sony Vaio Function Keys on Windows 10 (64-Bit): The Complete Driver Guide
Here’s exactly how to fix it. Windows 10 does a great job finding generic drivers, but Sony Vaio laptops use a custom embedded controller (EC). The standard HID (Human Interface Device) driver can’t interpret the special signals from your Fn key combos.