Microsoft Windows Management Interface for ACPI (WmiAcpi) Service Defaults in Windows 7
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
Microsoft Windows Management Interface for ACPI is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Microsoft Windows Management Interface for ACPI fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the WmiAcpi service is not running because of the error.
Restore Default Startup Configuration of 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 C:\Windows\system32\DRIVERS directory. If the file is removed or corrupted, read this article to restore its original version from Windows 7 installation media.