batcmd.com Windows 7 Services

Msahci - Windows 7 Service

MS AHCI 1.0 Standard Driver by Microsoft Corporation.

This service also exists in Windows Vista.

Startup Type

Windows 7 edition without SP SP1
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Default Properties

Display name:Msahci
Service name:msahci
Type:kernel
Path:%WinDir%\system32\DRIVERS\msahci.sys
Error control:critical
Group:SCSI Miniport

Default Behavior

The Msahci service is a kernel driver. If the Msahci fails to load or initialize, the error is logged and the computer attempts to restart with the LastKnownGood configuration. If the LastKnownGood configuration fails, Windows 7 startup also fails, and the boot process halts with a Stop error. If you disable this service, Windows 7 will fail to start. Do NOT change this service startup configuration if your computer is working.

Restore Default Startup Type for Msahci

Automated Restore

1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.

2. Save the RestoreMsahciWindows7.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the msahci.sys file exists in the %WinDir%\system32\DRIVERS folder. If this file is missing you can try to restore it from your Windows 7 installation media.