Acpi Ven_len&dev_4001 Updated Official

The safest way to get the correct driver is directly from the manufacturer:

Lenovo ACPI Driver for Windows 10 (64-bit) - ThinkCentre M93z acpi ven_len&dev_4001

If you see it with an error, install or the Lenovo Power Management Driver . Within five minutes, your Device Manager will be clean, and your battery will thank you. The safest way to get the correct driver

The identifier ACPI\VEN_LEN&DEV_4001 is an Advanced Configuration and Power Interface (ACPI) string used by Windows to identify a specific hardware component. your Device Manager will be clean

Do not use random "driver updater" software from the internet. Here is the safe, official way to fix it.