Hi,
Error 1605 is usually a disk space error. If disk space is not the problem, the error was generated by a corrupted installation/uninstallation of that product in the past. Continue installing other products. After the installer finishes, browse the CD and go into the folder of the driver that failed during the installation. Run the individual installer for each driver that failed.
Hope this helps out!
Best Regards,
Aaron K.
Application Engineer
National Instruments