Acpi\ven_vpc&dev_2004 [repack] Jun 2026

Without proper driver support for this device, special function keys and some power-management features will not work under Windows.

: It could be a specific piece of hardware that uses a custom or less common device ID. This could range from network cards, storage controllers, to more specialized equipment. acpi\ven_vpc&dev_2004

When you toggle "Conservation Mode" on in the software: Without proper driver support for this device, special

For gamers (Lenovo Legion users) and professionals (ThinkPad users), this ID is the difference between a battery that dies in two years and one that lasts five. It allows "desktop replacement" laptops to actually survive being desktop replacements. acpi\ven_vpc&dev_2004