batcmd.com Windows 11 Services

Microsoft ACPI Driver - Windows 11 Service

This service also exists in Windows 10, 7, 8, Vista and XP.

Startup Type

Windows 11 version Home Pro Education Enterprise
21H2 Boot Boot Boot Boot
22H2 Boot Boot Boot Boot
23H2 Boot Boot Boot Boot

Default Properties

Display name:Microsoft ACPI Driver
Service name:ACPI
Type:kernel
Path:%WinDir%\System32\drivers\ACPI.sys
Error control:critical
Group:Core

Default Behavior

The Microsoft ACPI Driver service is a kernel mode driver. If Microsoft ACPI Driver fails to load or initialize, the error is logged and the computer attempts to restart, using the Last Known Good configuration. If the Last Known Good configuration fails, Windows 11 startup also fails, and the boot process halts with a Stop error. If you disable this service, Windows 11 will fail to start. Do NOT change this service startup configuration if your computer is working.

Restore Default Startup Type for Microsoft ACPI Driver

Automated Restore

1. Select your Windows 11 edition and release, and then click on the Download button below.

2. Save the RestoreMicrosoftACPIDriverWindows11.bat file to any folder on a local drive such as SSD or a hard disk.

3. Right-click the downloaded batch file and select Properties.

4. Check the Unblock checkbox and click OK.

5. Right-click the batch file again and select Run as administrator.

6. Restart the computer to save changes.

Note. Make sure that the ACPI.sys file exists in the %WinDir%\System32\drivers folder. If this file is missing you can try to restore it from your Windows 11 installation media.

Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.