From the VMWare website:
To start the VMware Authorization service or to check whether it is running:
Login to the Windows operating system as Administrator.
Click Start and enter Run.
Enter services.msc and click OK.
Scroll down the list and locate the VMware Authorization service.
Click Start the service, if the service is already not showing a status of Started.
Note: The VMware Authorization service depends on the Windows Management Instrumentation service. This service must be running as well. If the VMware Authorization service does not start, or starts and then stops, locate and start the Windows Management Instrumentation service.