Windows 8 Services

SMB MiniRedirector Wrapper and Engine - Windows 8 Service

Implements the framework for the SMB filesystem redirector.

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

Startup Type

Windows 8 edition Windows 8 Windows 8.1 Windows 8.1 Update 1
Core Manual Manual Manual
Pro Manual Manual Manual
Enterprise Manual Manual Manual

Default Properties

Display name:SMB MiniRedirector Wrapper and Engine
Service name:mrxsmb
Error control:normal

Default Behavior

The SMB MiniRedirector Wrapper and Engine service is a file system driver. If SMB MiniRedirector Wrapper and Engine fails to start, the error is logged. Windows 8 startup proceeds, but a message box is displayed informing you that the mrxsmb service has failed to start.


SMB MiniRedirector Wrapper and Engine won't start, if the Redirected Buffering Sub System service is stopped or disabled.

The following services are unable to start if SMB MiniRedirector Wrapper and Engine is stopped:

Restore Default Startup Type of SMB MiniRedirector Wrapper and Engine

Automated Restore

1. Select your Windows 8 release and edition, and then click on the Download button below.

2. Save the RestoreSMBMiniRedirectorWrapperandEngineWindows8.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.

Note. Make sure that the mrxsmb.sys file exists in the %WinDir%\system32\DRIVERS folder. If this file is missing you can try to restore it from your Windows 8 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.