I have tried installing the update, have lost my original lightroom as if I never had it and I am getting these errors messages and I have uninstalled a month and a half worth of Windows updates to try and resolve the issue. "ERROR: Key not valid for use in specified state.
ERROR: Install MSI payload failed with error: 1603 - Fatal error during installation. MSI Error message: Key not valid for use in specified state.
ERROR: Third party payload installer Adobe_Lightroom_x64.msi failed with exit code: 1603"