After SQL Server setup completes you will need to install service packs before running SQL Server on this version of Windows. ...

After SQL Server setup completes you will need to install service packs before running SQL Server on this version of Windows. For SQL Server 2008, you will need to install Service Pack 3 (SP3) or later. For SQL Server 2008 R2, you will need to install Service Pack 1 (SP1) or later.