When deploying a template using Guest Customization, Windows operating systems fail

Symptoms

• When deploying a template using Guest Customization, the Windows 7, Windows Server 2008, or Windows Vista based operating systems fail
• When the virtual machine boots into Windows, you see the error:
  
  The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed. To install Windows, click OK to restart the computer, and then restart the installation.

• In the setupact.log file located at %SystemRoot% xxxx, you see this error multiple times:

Resolution

This issue may occur if an invalid Product Key is entered during the Guest Customization of the template when deploying the virtual machine.