Cleanly Uninstalling Stubborn SQL Server Components
Problem There are scenarios where SQL Server is difficult or impossible to uninstall, upgrade, or replace (and these can block you from installing a new version or using a specific named or default instance): An expired Evaluation Edition: Evaluation period has expired. For information on how to upgrade your evaluation software please go to http://www.microsoft.com/sql/howtobuy An expired Management Studio: Your Microsoft SQL Server Management Studio evaluation period has expired. You can get a key to extend your trial by registering this copy of Microsoft Management Studio online. You may also purchase a key to activate the product. Unsupported operating system (after an OS upgrade): The operating system on this computer does not meet the minimum requirements for SQL Server xxxx. Missing MSI files, e.g.: Slp: Target package: "C:\...\sql_engine_core_inst.msi" Slp: InstallPackage: MsiInstallProduct returned the result code 2. ...