I installed MS SQL Server 2008 R2 and I named my default instance "MSSQLSERVER". I want to uninstall that instance and start over. I used the Programs and Features control panel to completely remove MS SQL Server but when I run the installer again, the "MSSQLSERVER" instance remains. I know I can just create a new instance and call it something else but it bugs me that I didn't completely remove it.
I have searched the MS KB for information on removing MS SQL Server and everything I've found so far indicates that all I have to do is to use the Programs and Features control panel.
Can someone explain to me how to remove this instance or, if it's not possible, why not?