Acpi Msft8000 Apr 2026

MSFT8000 is a assigned to a Virtual ACPI Button Array – specifically, the Virtual 2.0 Button Array .

Have you encountered ACPI MSFT8000 in an unusual context? Let the community know in the comments below. acpi msft8000

Name (_HID, "MSFT8000") Name (_CID, "MSFT8000") Method (_STA) Return (0x0F) Name (_CRS, ResourceTemplate () ... ) MSFT8000 is a assigned to a Virtual ACPI

When Windows loads, acpi.sys parses this and loads the ( button.sys ) in "virtual array mode". The driver then creates software-initiated interrupts when the host signals a button event (e.g., host sends "Sleep" via VMBus). Summary Table | Attribute | Detail | |-----------|--------| | Device ID | ACPI\MSFT8000 | | Purpose | Virtual 2.0 Button Array (software-emulated power/sleep buttons) | | Common on | Hyper-V Gen 2 VMs, Windows IoT, some tablets/NUCs | | Driver | button.sys (part of Windows) | | Error fix | Update Windows, install Hyper-V Integration Services, or disable device | Final Verdict ACPI MSFT8000 is not malware , not a hardware failure , and not something to worry about . It's a legitimate ACPI device used by Microsoft to virtualize physical buttons. If it’s showing an error, simply update Windows or disable it unless you’re running a virtual machine that needs synthetic button inputs. Summary Table | Attribute | Detail | |-----------|--------|

If you’ve ever dug into Windows Device Manager or run a hardware analysis tool (like lsacpi or devcon ), you might have spotted a mysterious device labeled ACPI MSFT8000 . It often appears under the "System devices" node, sometimes with a yellow exclamation mark.

Device (VBTN)

This article explains what ACPI MSFT8000 is, why it exists, and how to handle driver issues related to it. ACPI stands for Advanced Configuration and Power Interface – the standard that allows Windows to communicate with hardware for power management, device enumeration, and thermal control.

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