This is an additional solution instead of first manually uninstalling the current product and then installing a new copy.
To replace your current version, you start with the installation package of the product you want to reinstall. If the installation package recognizes an earlier installation of the Building Operation product within the same major and minor version number but lower maintenance number, the installation wizard asks if you want to uninstall the current version before installing this package.
Before reinstalling a License Server or Enterprise Server, you must stop related Windows services.