Acpi Wstadef 2&daba3ff&0 -
ACPI\WSTADEF\2&DABA3FF&0
The hardware ID fragment (often appearing in Device Manager as an "Unknown Device") typically refers to system-level drivers related to platform management or hardware protection.
- In Device Manager, right-click the unknown device and select Properties.
- Go to the Details tab.
- Under the "Property" dropdown, select Hardware Ids.
- Copy the value (e.g.,
ACPI\WSTADEF). - Paste this value into Google or the manufacturer's support search bar. This will direct you to the exact driver file required.
- Usually working properly with no user action needed.
- If it shows a yellow exclamation mark, the driver might be missing/corrupt (rare; Windows usually has built-in ACPI drivers).
- If disabled or uninstalled, some power or thermal management features may be affected.
The identifier is frequently tied to hardware manufactured by (the manufacturer for Xiaomi's notebooks). Win-Raid Forum Understanding the String Parts : Indicates the device is managed via the Advanced Configuration and Power Interface acpi wstadef 2&daba3ff&0
ACPI Power States
- The laptop wakes up immediately after going to sleep, or fails to enter Modern Standby. This points to a wake timer incorrectly configured via the WST (Wake Status Timer) definition.
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