On our network, Java is installed via group policy. When a new version is released, we update the server with the new installer package. On one of my workstations, the java program became corrupted and a reinstall was necessary. During the installation of update 29, the installer is looking for update 27 (on the server) but it is no longer there. I receive an error 1714: unable to uninstall old version.
The program is not listed under add/remove programs.
All Java folders and files and registry entries (that I can find) that reference java or sun have been removed.
I have tried installing it under a different login.
I even tried to move the workstation in question to an OU without the software installation policy (thinking it might undo whatever registry entry was causing my problems), but that did not help.