don't know why, when installing SQL 2005 to choose components can only choose the last item on the workstation components, books online and a development tool, other 7 items cannot be checked ,

I choose advanced, all components are installed on the local hard drive, complete the installation process just skip the instance is created, and authentication, directly installed,


but we have no local server after installation SQL2005, also does not have a login name and password,


Excuse me expert problem what reason is this? I am a beginner, please feel free to comment, thank you.