If you see an in your Windows Device Manager with a yellow exclamation mark, it is often due to a missing ACPI driver. This frequently happens after a "clean" installation of Windows where the manufacturer's specific system drivers were not automatically included. Where to Download (Safety Warning)

The ACPI driver ( Acpi.sys ) is a core Windows component that acts as an interface between the operating system and the system firmware (BIOS/UEFI). It is responsible for:

: Refers to the ACPI driver, which manages how your computer handles power states (sleep, hibernate, battery management).

: Likely refers to a specific driver version or package released in 2017. For instance, Lenovo released a critical ACPI driver for ThinkCentre M810z and similar models on March 9, 2017 . "skachat" : This is Russian for "to download." What is the ACPI Driver?

: Controlling when the screen turns off or the system goes to sleep.

This query likely refers to a search for a specific system driver related to for Windows. While "DRV2017" is not a standard industry-wide hardware ID (like PNP0C09 ), it commonly refers to a specific driver release from 2017 for older Lenovo or Intel-based systems. Understanding the Request

: You can often use the Intel Driver & Support Assistant to automatically identify missing power management components. Alternative Interpretation: "Draiver" App Acpi.sys (Windows ACPI Driver) - Microsoft Learn

: Use the Lenovo Support Site and enter your serial number to find the exact ACPI driver for your model.