By default, the Core Service is installed automatically on the audited computers when setting up auditing in Netwrix Auditor. If, for some reason, the installation has failed, you must install the Core Service manually on each audited computer.
To install Netwrix Auditor User Activity Core Service to audit user activity
On the computer where Netwrix Auditor Server resides, navigate to %ProgramFiles% (x86)\Netwrix Auditor\User Activity Video Recording and copy the UACoreSvcSetup.msi file to the audited computer.
Run the installation package.
Follow the instructions of the setup wizard. When prompted, accept the license agreement and specify the installation folder.
On the Core Service Settings page, specify the host server (i.e., the name of the computer where Netwrix Auditor is installed) and the server TCP port.
Apart from the Core Service itself, the setup wizard will also install Infognition ScreenPressor codec that will be used for video recording.