Redirected Buffering Sub System (rdbss) Service Defaults in Windows 11
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 |
| Group: | Network |
| Path: | %SystemRoot%\system32\DRIVERS\rdbss.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\rdbss |
Default Behavior
Redirected Buffering Sub System is a file system driver. In Windows 11 it starts at Kernel initialization. If Redirected Buffering Sub System fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the rdbss service startup failure.
Dependencies
Redirected Buffering Sub System cannot be started, if the Mup service won't start.
If Redirected Buffering Sub System doesn't work properly, the following services will not start:
- Offline Files Driver
- Plan 9 Redirector Driver
- Remote Desktop Device Redirector Driver
- SMB MiniRedirector Wrapper and Engine
- WebDav Client Redirector Driver
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 11 installation media.