SMB 2.0 MiniRedirector (mrxsmb20) Service Defaults in Windows 11
Implements the SMB 2.0 protocol, which provides connectivity to network resources on Windows Vista and later servers.
Default Settings
| Startup type: | Manual |
| Display name: | SMB 2.0 MiniRedirector |
| Service name: | mrxsmb20 |
| Service type: | filesys |
| Error control: | normal |
| Group: | Network |
| Path: | %SystemRoot%\system32\DRIVERS\mrxsmb20.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mrxsmb20 |
Default Behavior
SMB 2.0 MiniRedirector is a file system driver. In Windows 11 it starts only if the user, an application or another service starts it. If SMB 2.0 MiniRedirector fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the mrxsmb20 service startup failure.
Dependencies
SMB 2.0 MiniRedirector cannot be started, if the SMB MiniRedirector Wrapper and Engine service won't start.
If SMB 2.0 MiniRedirector doesn't work properly, the Workstation service can't start.
Restore Default Startup Configuration of SMB 2.0 MiniRedirector
Before you begin doing this, make sure that all the services on which SMB 2.0 MiniRedirector depends are configured by default and function properly. See the list of dependencies above.1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config mrxsmb20 start= demand
3. Close the command window and restart the computer.
The mrxsmb20 service is using the mrxsmb20.sys file that is located in the C:\Windows\system32\DRIVERS directory. If the file is removed or corrupted, read this article to restore its original version from Windows 11 installation media.