Device (VBTN)
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. acpi msft8000
Have you encountered ACPI MSFT8000 in an unusual context? Let the community know in the comments below. Device (VBTN) When Windows loads, acpi
MSFT8000 is a assigned to a Virtual ACPI Button Array – specifically, the Virtual 2.0 Button Array . It's a legitimate ACPI device used by Microsoft