Components of previous installation of CB Defense Sensor failed and left CbELAM.sys
Resolution
Delete the following file
C:\Windows\System32\drivers\CbELAM.sys
Run the installation of the CB Defense Sensor
Additional Information
If the CbELAM.sys error is showing in the logs but the file is not in that location, then try creating the directory C:\Windows\ELAMBKUP before the install. If that doesn't work please open a Support Case.