Microsoft Windows Management Interface for ACPI (WmiAcpi) Service Defaults in Windows 8

Windows Management Interface for ACPI by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Microsoft Windows Management Interface for ACPI
Service name:WmiAcpi
Service type:kernel
Error control:normal
Group:Extended Base
Path:%SystemRoot%\System32\drivers\wmiacpi.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WmiAcpi

Default Behavior

The Microsoft Windows Management Interface for ACPI service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Microsoft Windows Management Interface for ACPI fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the WmiAcpi service hasn't been started.

Restore Default Startup Configuration for Microsoft Windows Management Interface for ACPI

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config WmiAcpi start= demand

3. Close the command window and restart the computer.

The WmiAcpi service is using the wmiacpi.sys file that is located in the %WinDir%\System32\drivers folder. If the file is corrupted or deleted, you can put it back in there.