After installation getting error “The Microsoft Forefront TMG services cannot be started. Please try restarting the computer.”

Issue: At the end of installation of TMG 2010 getting error “The Microsoft Forefront TMG services cannot be started. Please try restarting the computer.” Troubleshooting: In the event logs if we find following event Log Name: Application Source: Microsoft Forefront TMG Control Date: 12/01/2010 02:05:09 p.m. Event ID: 14192 Task Category: None Level: Error Keywords:…