How can you determine what GPO was and was not applied for a user in a Windows AD Domain.

start->Run->cmd-> type

gpresult /?

gpresult /R

By using the /R switch with nothing else, summary data for the various policies and settings will be printed to your command prompt.

gpresult /V

This is the same as the /R command, only the results will be verbose

 GPRESULT /R
 GPRESULT /H GPReport.html
 GPRESULT /USER targetusername /V
 GPRESULT /S system /USER targetusername /SCOPE COMPUTER /Z
 GPRESULT /S system /U username /P password /SCOPE USER /V