When you uninstall Microsoft SQL Server 2005, you receive the following error message:
The setup has encountered an unexpected error while Setting Internal Properties. The error is: Fatal error during installation.
This problem occurs when you perform the following operations before you uninstall SQL Server 2005:
- You install the Active Directory directory service on the server.
- You install SQL Server 2005.
- You remove Active Directory from the server.
In another scenario, after you move Microsoft Windows from one domain to another domain, you receive the same error message when you install Microsoft SQL Server 2005 Service Pack 1 (SP1).