when a windows update fails to install, the corrupted download may still be on your drive, which can cause further issues when you try to update again. Best way to solve a failed installation of feature update to windows 10, version 1709. windows stores the new updates in the windows update folder (softwaredistribution) after downloading these updates. If feature update to windows 10 version 1709 failed to install, now, the first method you can try is to delete the windows update folder.