So, what specific hardware is this? The "FNBT0000" identifier is strongly associated with the (like brightness, volume, and Wi-Fi toggles) on certain laptop models, most famously the Intel Classmate PC. In essence, when you see this entry without a proper driver, Windows is saying, "I see there are some special keys on this keyboard, but I don't know how to talk to them."
Disabling it does nothing to core ACPI functionality (sleep, hibernate, battery reporting). It only disconnects the BIOS-to-OS channel for that specific set of function keys.
If you’ve recently opened on a Windows 10 laptop (especially an older ASUS, Lenovo, or Acer model), clicked View > Show Hidden Devices , and expanded the System devices tree, you might have seen it: FNBT0000 .
The official driver is available via the Microsoft Update Catalog. Go to the Microsoft Update Catalog website . acpi fnbt0000 0 driver windows 10
If the manufacturer's site is unavailable, the driver can sometimes be extracted manually from the Microsoft Update Catalog.
Last updated: 2025. Applicable to Windows 10 versions 1809 through 22H2.
If you have zero issues with Bluetooth hotkeys or airplane mode, and you just hate the yellow bang: So, what specific hardware is this
Since this ID is tied to Lenovo's power management system, installing the Lenovo Virtual Power Controller driver usually resolves the issue. Right-click the and select Device Manager .
If you are unsure of your device model, follow these steps to verify the hardware ID:
Extensive community and driver archive research links FNBT0000 to . It appears in Samsung laptop models such as: It only disconnects the BIOS-to-OS channel for that
Go to the tab, click the property dropdown, and select Hardware Ids to confirm it says ACPI\FNBT0000 .
The is not a virus, not a critical system failure, and certainly not a reason to panic. It is a legitimate, albeit often frustrating, component of your laptop’s power and hotkey infrastructure.
Specifically, the FNBT0000 identifier corresponds to a driver for the on certain laptop keyboards. This is not a critical system driver, but it is essential for the proper operation of laptop-specific features, such as:
FNBT0000 follows the vendor-specific pattern, suggesting a proprietary component.