For most users, Windows 10’s native action center + keyboard settings (e.g., F1-F12 as standard keys) is more stable. Install the Toshiba Function Key Utility only if your workflow heavily depends on Fn combos, and keep a backup of the working driver version.
Dynabook (formerly Toshiba Client Solutions) provides the official drivers. toshiba function key utility windows 10 64 bit
Open the and type "System Settings" or "HWSetup". Navigate to the Keyboard tab. Choose your preferred Function Keys Mode and click OK . 3. Troubleshooting TOSHIBA Function Key not all working | Tom's Guide Forum For most users, Windows 10’s native action center