As part of the SQL Server installation and upgrade process, SQL Server Setup checks the configuration of your computer and indicates any potential installation problems. For example, if you do not have the required version of Microsoft .NET Framework installed, SQL Server Setup reports an error. Also, if you try to upgrade an old version of SQL Server software that is not at the minimum service pack level, SQL Server Setup reports an error and cannot continue until you apply the required service pack update. You must resolve all issues before you continue with SQL Server software installation.