Redirected Buffering Sub System (rdbss) Service Defaults in Windows 10

Provides the framework for network mini-redirectors.

Default Settings

Startup type:System
Display name:Redirected Buffering Sub System
Service name:rdbss
Service type:filesys
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\rdbss

Default Behavior

Redirected Buffering Sub System is a file system driver. In Windows 10 it is starting at Kernel initialization. If Redirected Buffering Sub System fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the rdbss service has failed to start due to the error.


Redirected Buffering Sub System cannot be started under any conditions, if the Mup service is disabled.

While Redirected Buffering Sub System is stopped, disabled or working incorrectly, the following services do not start:

Restore Default Startup Configuration of Redirected Buffering Sub System

Before you begin doing this, make sure that all the services on which Redirected Buffering Sub System 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 commands below, paste them into the command window and press ENTER:

sc config rdbss start= system
sc start rdbss

3. Close the command window and restart the computer.

The rdbss service is using the rdbss.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 10 installation media.