SBP-2 Transport/Protocol Bus Driver (sbp2port) Service Defaults in Windows 11
Default Settings
| Startup type: | Manual |
| Display name: | SBP-2 Transport/Protocol Bus Driver |
| Service name: | sbp2port |
| Service type: | kernel |
| Error control: | normal |
| Path: | %SystemRoot%\System32\drivers\sbp2port.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sbp2port |
Default Behavior
SBP-2 Transport/Protocol Bus Driver is a kernel driver. In Windows 11 it starts only if the user, an application or another service starts it. If SBP-2 Transport/Protocol Bus Driver fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the sbp2port service startup failure.
Restore Default Startup Configuration of SBP-2 Transport/Protocol Bus Driver
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config sbp2port start= demand
3. Close the command window and restart the computer.
The sbp2port service is using the sbp2port.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.