During the installation of VirtualCenter the following error code was presented “25036”. With no further message the installation is cut-off. After a close inspection it seemed that there already were a couple of SQL Express 2005 services installed, the software was removed and the services were still there but disabled. I guess for some reason the removal of SQL 2005 Express wasn’t successful. The installation procedure seems to have a hard time overwriting the registry values or changing the old values. This problem can easily be solved by manually deleting that specific service in the registry. (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services)
Or you can remove the service with the command “sc delete ‘servicename’ “
Good tip Ted! Thanks,