The NtRenameTransactionManager routine changes the identity of the transaction manager object that is stored in the CLFS log file stream contained in the log file name.
NTSTATUS NtRenameTransactionManager ( _In_ PUNICODE_STRING LogFileName, _In_ LPGUID ExistingTransactionManagerGuid );
Note NtRenameTransactionManager and TmRenameTransactionManager are two versions of the same routine. Kernel-mode drivers should not call NtRenameTransactionManager. They should instead call TmRenameTransactionManager.