Before upgrading your client operating system to a different version (for example: Upgrade Windows XP to Windows Vista or Windows Vista to Windows 7), you should uninstall the client connector from Add/Remove Programs or Programs and Features. Once the client operating system upgrade is complete you can reinstall the client connector by browsing to http://server/connect where server is the name of the server.
During the installation of the client connector, numerous checks are performed against the client operating system to ensure the client meets all the connector prerequisites. If you upgrade the client operating system with the connector installed, some of the prerequisites may not be present and the client connector may fail. If you have already upgraded the client with the connector installed, you can uninstall the connector by using Add/Remove Programs or Programs and Features. Once the connector is uninstalled, you can reinstall it by browsing to http://server/connect where server is the name of the server.