Database already exist

You want to install IMSS which requires installation of database (MSDE or MS SQL) as the component. When the prompt for Database settings appear, you choose the first option "Default MSDE". However, you cannot proceed to install MSDE because it is already detecting the previous version of MS SQL database on the server. You are sure you want to use MSDE as the database. From Add Remove Program, there is no copy of previous database installation.



To remedy this, you need to delete the following registry key:

HLM\Software\Microsoft\MSSQLServer

Delete the entire folder of "MSSQLServer". Reboot the server and try again.