There is currently an issue in all locallized (Non English) Environments with Vault Basic Server 2014 (for example German OS and German Vault Basic Server) that the installation of SP1 (for Server) fails with the following error message (the German message):
English Error Message: error applying transforms. verify that the specified transform paths are valid
German Error Message: Fehler bei der Anwendung von Transformen. Stellen sie sicher, dass die angegebenen Transformpfade gültig sind.
Update 26th August: a new version of SP1 has been republished and the installation should work fine now.
If you still encounter this problem (with the SP1 of 23th August) please log a support case.