Acpi Fnbt0000 Driver !!top!! Direct

Lenovo includes a proprietary battery management system (often called Battery Conservation Mode or Battery Charge Threshold ) that limits charging to 55-60% to extend battery lifespan. This feature does not use standard Microsoft ACPI methods; it relies entirely on the FNBT0000 interface. Without the driver, your battery will always charge to 100%, regardless of the Lenovo Vantage settings.

sfc /scannow dism /online /cleanup-image /restorehealth Acpi Fnbt0000 Driver

Technically yes, but you will lose battery conservation mode and Fn key functionality. The laptop will still boot and run, but power management will be basic. It is not recommended for laptops; for desktops (ThinkCentre), it is safe to disable. for desktops (ThinkCentre)