Error in installation of SQL Server 2008 Management Studio

Question

I have installed SQL Server 2008 Express on my machine but I can't find the Management Studio.

I downloaded two versions of SQL Server Management Studio, 2008 and R2

This is the result

I don't know what is exactly the problem, on my machine I have VS2008, VS2010 and VS2012 express for web.

I googled about this topic and i installed the SP1 package. I had SQL Server 2005 with its management tool and it worked very well, but now I need to change to the 2008's version, I don't know if I made an error when I uninstalled one of them.

So :

1. What is the reason of this error?
2. How can i fix this problem?

Answer 1

What about the Feature Selection tab? Have you selected the management Tools in it?

Check out the options selected in this step-by-step guide:

Step-by-Step: Installing SQL Server Management Studio 2008 Express after Visual Studio 2010