In addition, its processing was very cheap: the lid was easy from the anchorage, etc. So the device went back. In the second attempt I decided (despite some comments that there are problems under Window 10 / 64) then again for a Canon model. And behold, everything is fine. First, good and reasonably good workmanship for the price. The lid holds. Second: no problems with the installation, the driver from the CD is running. Update to the latest Canon CanoScan LiDE120 driver and no problem. I like the software ScanGear, because it offers many useful options and really gets everything out of the scanner.
So if you encounter similar problems that after successful installation when scanning the software throws an error message: do not despair, change the settings in the settings, then it funzt. 1 star deduction only because of the writing rights problem (because the error message does not help because, you have to find out for yourself, synonymous no help on the website of Canon). This drawback is unattractive, but solvable and I think anyway only users who have the latest Win10 / 64 version. I was able to scan several documents successfully afterwards, I am completely satisfied and there are no bluescreens after the reboot (as others write here) or other crashes.