After upgrading to or clean installing Windows 11, many Lenovo users see this device flagged in Device Manager with a yellow exclamation mark. The error is often:
Prerequisite: You need the correct driver. Usually, this is the Lenovo Power Management Driver. You can find this on your specific laptop model's support page under "Drivers and Software." acpi ven len&dev 0068 windows 11
The Bad (Installation Process):