Microsoft Update display update category for uninstalled product

I have uninstalled SQL Server 2005 Express edition

I have problem while i try to reinstall it (second time), when i choose the
name of the service is MSSQLSERVER, the install failed.

The problem may be accidental deletion of the very first install.

The second install is successful while using the default name.
And then i uninstall it again, but it just still "unclean"


The Microsoft Update, in the category, it still have "SQL server Feature
Pack", but i have uninstalled!!!

I still have the C++ redistribute.