1. Licensing questions: Call (8004269400), Monday through Friday, 6:00 AM to 6:00 PM PST to speak directly to Microsoft licensing specialist.
2. Setup failure (install, upgrade, patch, un-install): Post to SQL Setup & Upgrade MSDN forum, please upload/share SQL Server setup logs, you can use file/storage service like Skydrive to share/upload SQL Server setup logs.
3. Connection issues(error 26 or error 40): Steps to troubleshoot SQL connectivity issues
4. Supported upgrade paths
5. Hardware and Software Requirements:
6. Supported features per edition
7. Determine what features installed on the machine and at what level.: How to determine the version and edition of SQL Server and its components
8. SQL Server on windows 8/ Server 2012