Server SMB Driver (srv) Service Defaults in Windows 10

Enables connectivity from Windows XP and earlier clients.

Default Settings

Startup type:Automatic
Display name:Server SMB Driver
Service name:srv
Service type:filesys
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\srv

Default Behavior

Server SMB Driver is a file system driver. In Windows 10 it is starting automatically when the operating system starts. If Server SMB Driver fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the srv service has failed to start due to the error.


Server SMB Driver cannot be started under any conditions, if the Server SMB Driver service is disabled.

Restore Default Startup Configuration for Server SMB Driver

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_srv_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The srv service is using the srv.sys file that is located in the %WinDir%\System32\DRIVERS folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.