CBT stop working

I installed new disk (ISCSI) then copied (data from old disk to new) and then change drive leter.

I cannot stop urbackupcbt drivers.

C:\Windows\system32>sc query urbackupcbt

SERVICE_NAME: urbackupcbt
TYPE : 1 KERNEL_DRIVER
STATE : 4 RUNNING
(STOPPABLE, NOT_PAUSABLE, IGNORES_SHUTDOWN)
WIN32_EXIT_CODE : 0 (0x0)
SERVICE_EXIT_CODE : 0 (0x0)
CHECKPOINT : 0x0
WAIT_HINT : 0x0

C:\Windows\system32>sc stop urbackupcbt
[SC] ControlService FAILED 1052:

After uninstalling urbackupclient, driver urbackupcbt still running too.