Error installing SQL Server 2008 R2

Asked By 0 points N/A Posted on -

I have an existing SQL Server installed in my computer running Windows 7 which is SQL Server 2005 instance.

I have tried to upgrade to SQL Server 2008 R2, but it gives me an error during the setup.

Please refer to the image below.

SQL Server Setup failure.

SQL Server Setup has encountered the following error:

Method not found: 'Microsoft.SqlServer.Configuration.Sco.SqlEdition



I Have also tried to perform a clean install by uninstalling first the SQL Server 2005, but still it gives me the same error message.

How do I get rid of this error message?

Someone help me please.               

Best Answer by Sharath Reddy
Answered By 0 points N/A #110987

Error installing SQL Server 2008 R2


Hi Kim,

It seems your problems are in the preparing in your installation. Before you upgrade your SQL did you download the application you want to upgrade? Because when you analyze your error message saying that the method was not found. Mean the method you want to use was not in your system or available in your system.

So I suggest before you upgrade your SQL download first the mechanisms of your application. Then try again upgrading your application in your system. But check first the compatibility of the application you want to install in your system. Or you can contact your administrative support for further information.


Best Answer
Best Answer
Answered By 574875 points N/A #110988

Error installing SQL Server 2008 R2


I think the problem you are experiencing on your computer when installing SQL Server 2008 R2 depends on the version of the SQL server you are installing. Not all SQL server editions are compatible or can be installed on Windows 7 operating system. Only the Standard edition of the SQL Server 2008 R2 both the 32-bit and 64-bit versions allows installing it on a computer that is running on Windows 7.

In SQL Server 2008 R2 Standard edition 64-bit, you can install it on these Windows 7 versions:

  • Windows 7 64-bit Ultimate
  • Windows 7 64-bit Enterprise
  • Windows 7 64-bit Professional

And in SQL Server 2008 R2 Standard edition 32-bit, these are the Windows 7 allowable versions:

  • Windows 7 Ultimate 32-bit
  • Windows 7 Enterprise 32-bit
  • Windows 7 Professional 32-bit
  • Windows 7 Ultimate 64-bit
  • Windows 7 Enterprise 64-bit
  • Windows 7 Professional 64-bit

The 32-bit version of SQL Server 2008 R2 Standard edition can be installed on both 32-bit and 64-bit versions of these Windows 7 versions.

For the complete details refer

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