SMB 1.x MiniRedirector (mrxsmb10) Service Defaults in Windows 8

Implements the SMB 1.x (CIFS) protocol. This protocol provides connectivity to network resources on pre-Windows Vista servers.

Default Settings

Startup type:
Windows 8 CoreManual
Windows 8 ProManual
Windows 8 EnterpriseManual
Windows 8.1 CoreAutomatic
Windows 8.1 ProAutomatic
Windows 8.1 EnterpriseAutomatic
Windows 8.1 Update 1 CoreAutomatic
Windows 8.1 Update 1 ProAutomatic
Windows 8.1 Update 1 EnterpriseAutomatic
Display name:SMB 1.x MiniRedirector
Service name:mrxsmb10
Service type:filesys
Error control:normal
Group:Network
Path:%SystemRoot%\system32\DRIVERS\mrxsmb10.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mrxsmb10

Default Behavior

The SMB 1.x MiniRedirector service is a file system driver. It will not be started until the user starts it in Windows 8 Core, Pro, Enterprise. This service is starting automatically during the operating system startup in Windows 8 Core Windows 8.1, Pro Windows 8.1, Enterprise Windows 8.1, Core Windows 8.1 Update 1, Pro Windows 8.1 Update 1, Enterprise Windows 8.1 Update 1. If SMB 1.x MiniRedirector 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 mrxsmb10 service hasn't been started.

Dependencies

SMB 1.x MiniRedirector can't start, if the SMB MiniRedirector Wrapper and Engine service is disabled or not available.

All the services listed below will not start if SMB 1.x MiniRedirector is disabled:

Restore Default Startup Configuration for SMB 1.x MiniRedirector

1. Select your Windows 8 edition and update pack, and then click Download.

2. Save the Win8_mrxsmb10_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The mrxsmb10 service is using the mrxsmb10.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.