Acpi Wstadef: 2&daba3ff&0

The specific string 2&DABA3FF&0 is a suffix generated by Windows to uniquely identify a specific instance of a device on your motherboard's ACPI (Advanced Configuration and Power Interface) bus. Likely Device Identities

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Last updated: October 2025 Keywords: acpi wstadef 2&daba3ff&0, ACPI device error, Windows Modern Standby fix, virtual ACPI device, Device Manager unknown device

If you see this ID in Device Manager with a yellow exclamation mark, it means the driver is missing or corrupted. Resolution Steps Download the AMD Chipset Drivers acpi wstadef 2&daba3ff&0

The ACPI\WSTADEF\2&DABA3FF&0 error means your operating system can detect the hardware but doesn't have the correct driver software to communicate with it. This is common after a clean Windows installation, where the system only includes generic drivers.

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: The vendor-defined vendor/device code mapped to the specific hardware subsystem. On laptops like the Xiaomi Air 13.3, it is tied specifically to the integrated OSD (On-Screen Display) hotkey functions. The specific string 2&DABA3FF&0 is a suffix generated

If you are on the Chinese site, look for "OSD快捷键功能显示" (OSD shortcut key function display). Manual Driver Installation Right-click the button and select Device Manager

: Stands for Advanced Configuration and Power Interface. This is the industry-standard layer that controls core motherboard functions, power states, and hardware monitoring.

A primary source for the required driver for the "WSTADEF" device is Microsoft's official update catalog. This catalog shows an update specifically for , provided by Timi (a Xiaomi ecosystem brand) for Windows 10 version 1803 and later. Resolution Steps Download the AMD Chipset Drivers The

This is the instance ID, confirming it's a specific, unique device on your motherboard, not a generic USB device. Symptoms of the Missing WSTADEF Driver An "Unknown Device" icon in Device Manager.

Understanding and Fixing the Missing ACPI\WSTADEF\2&DABA3FF&0 Driver on Windows

The string acpi wstadef 2&daba3ff&0 looks intimidating, but it is merely a unique identifier for a virtual ACPI device—usually a wake timer, status monitor, or sensor interface provided by your laptop’s BIOS. For 95% of users, it requires no action.