After saving and exiting, the behavior changes without any Windows software.
If you skip any of the intermediate restarts, some components may not load correctly, and your function keys may remain non‑functional.
: If software doesn't work, restart and tap F2 to enter BIOS. Look for "Action Key Mode" under System Configuration to change how the keys behave by default. toshiba function key utility windows 10 64 bit
If you’ve recently upgraded your Toshiba laptop or performed a clean install of Windows 10, you might have noticed a frustrating problem: your (brightness, volume, Wi-Fi toggles) have stopped working.
: Disabling the touchpad while typing to prevent accidental clicks (Fn + F9 on specific models). The Visual "Flash Cards" Interface After saving and exiting, the behavior changes without
“After a Windows update, Fn keys stopped working. Reinstalling utility didn’t help. Had to use SharpKeys or AutoHotkey as a replacement.”
On Toshiba laptops running Windows 10 64-bit, the F1–F12 keys often share space with media controls (Volume, Brightness, Wi-Fi toggle). Look for "Action Key Mode" under System Configuration
The importance of this utility becomes acutely apparent during a clean installation of Windows 10 64-bit. Users who upgrade or reinstall their OS often discover that their Toshiba laptop’s media keys—marked with small icons like a sun (brightness) or a speaker (volume)—become inert. The operating system recognizes the keyboard as a generic input device, but it lacks the proprietary logic to understand "Fn + F6" (decrease brightness). The Function Key Utility fills this void. Moreover, it often works in tandem with other Toshiba software packages, such as the Toshiba System Settings or Toshiba Service Station , to provide an on-screen display (OSD) that shows a visual bar when volume or brightness changes. Without the utility, the hardware works, but the user experience becomes blind and clunky.
Toshiba Function Key Utility (often referred to interchangeably with the Toshiba Hotkey Utility Flash Cards