SQL Server 2005 Express on Windows 8
According to this Microsoft KB article, SQL Server 2005 (in any form, even with all the Service Packs installed) is not supported on Windows 8.


SQL Server 2008 is supported, as long as you install Service Pack 3.
SQL Server 2008 R2 is supported, as long as you install Service Pack
1.
SQL Server 2012 is supported with any version.