ACPI Power Meter Driver (AcpiPmi) Service Defaults in Windows 8

ACPI Power Metering Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:ACPI Power Meter Driver
Service name:AcpiPmi
Service type:kernel
Error control:normal
Path:%SystemRoot%\System32\drivers\acpipmi.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AcpiPmi

Default Behavior

The ACPI Power Meter Driver service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If ACPI Power Meter Driver 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 AcpiPmi service hasn't been started.

Restore Default Startup Configuration for ACPI Power Meter Driver

1. Run the Command Prompt as an administrator.

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

sc config AcpiPmi start= demand

3. Close the command window and restart the computer.

The AcpiPmi service is using the acpipmi.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.