After I followed the instructions in "Symantec Support Document ID: 2002093014110648", this problem disappeared.
- Status 20000032 = ERROR_COPY_OUT_OF_DATE - As per Symantec: "You can see this error in the NAVCE event log when an attempt is made to copy the same virus definition files a second time". This informational event is indicating that virus definitions are already updated and is stating that a check was made. Virus definitions were not downloaded a second time. See Symantec KB ID 2001011610415048 for more details.
This problem seems to occur when the parent server running Norton Antivirus Corporate Edition 7.5 is unable to access known workstations in its database in order to update the virus definitions. Most probable cause is the workstation is turned off.