Uninstall MS SQL Server Embedded Edition

1. Start Registry Editor, and then locate the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
2. In the left pane, click each GUID. For each GUID that you click, look for a display name in the right pane that matches “Microsoft SQL 2005 Embedded Edition…”.
3. When you see a display name that matches the name, copy the value of the Key named “UninstallString”
4. Open a Command-Window (Start->run->cmd)
5. Paste the Copied string. It should be something like this: MsiExec.exe /X{BDD79957-5801-4A2D-B09E-852E7FA64D01}
6. Append “ CALLERID=OCSETUP.EXE” at the end of the MsiExec.exe eg “MsiExec.exe /X{BDD79957-5801-4A2D-B09E-852E7FA64D01} CALLERID=OCSETUP.EXE”
7. Run the command. This will go through the process of uninstalling SQL Server 2005 Embedded Edition
8. Reboot.