Visit the and search for ACPI\FNBT0000 .
The device ID typically identifies the Airplane Mode HID Mini-driver or Virtual Keyboard Device . This is common on laptops (like HP , ASUS, or Lenovo) where a physical or function (Fn) key is used to toggle Airplane Mode or specific keyboard shortcuts. acpi fnbt0000 driver fix
In practical terms, the ACPI FNBT0000 driver is responsible for managing (Fn + F1 through F12) on your Acer laptop. These keys control: Visit the and search for ACPI\FNBT0000
In short: When it breaks, your Fn keys stop working, or you may experience issues with power management (sleep/hibernate), ambient light sensors, or even Bluetooth toggles. In practical terms, the ACPI FNBT0000 driver is
Since this hardware ID is often linked to Airplane Mode or hotkey functions, generic Windows updates may fail to find it.
If you’ve opened Device Manager and noticed a yellow triangle next to “ACPI FNBT0000” under “Other devices,” you’re not alone. This issue is common on Lenovo laptops (ThinkPad, IdeaPad, Yoga) after a fresh Windows installation or a major update.