Device drivers do not run under Windows 7

The Spyder4Pro comes in a cheap-looking packaging therefore ... and unfortunately the first appearances are not deceptive also. After careful Herauspfrimeln the device from the package falls only once on the way too short USB cable. Who are his PC under my desk, is here even before the first issue.
But before you can connect the Spyder, you must install the software anyway for now. And here comes the second problem (at least time with me) - the CD can not be read correctly from the drive. The current software you can download over the Internet however. Are only 75 MB. The software is permanently installed and after a reboot of the Spyder to a USB 2.0 port must be plugged in (but not to a USB 3.0 port and not to a hub).
And at this point then comes the show-stopper. Win 7 (64-bit) does not accept the driver because apparently lacks the certification. On the manufacturer's website you will be looking for the latest drivers not find it.
Because a Google search on the problem, unfortunately, was also unsuccessful, I had just left again everything neatly pack up and send them to Amazon back ...