Load Generator Exceeded 80% of CPU Utilization in Loadrunner

There could be several things, but using 2008 machines on VMs is common. If you are using web vusers should be a small footprint. 

• Check if you have admin rights on the system or not?
• Is CPU consumption above 80% during the entirety of the test
• Check for any mismatch in versions in patch version
• Try to run the agent using "Run as administrator"
• Check for the mdrv process in the htask manager of the controller and the load generator machines while running the test make sure to have the same patches level on every component, having a version mix is a real problem.
• Please check if you have the following components installed on your LG machine McAfee Antivirus or  Symantec NetBackup