Thanks a lot for your answers.
Unfortunatelly, I haven't found any solutions yet, and I'm not sure whether it is Windows 10 I should blame or something else.

After some more search, I can now...

Hello. I am running Windwos 10 for almost 2 years now.
I have 2 external Hard Drives and a lot of files on these drives appear as folders. I cannot view them, delete them, copy them or do anything...