How to enable drag-and-drop in(to) the navigation of the Windows 10 explorer?

Image of me not being able to drag and drop the file on the right into the folder on the left:

I can drop it into the folder above "(downloaded) setups and programs", but only via the right window.

I installed this Windows 10 Home OS yesterday, and today Microsoft's Support couldn't help me. Online I found a "solution" involving the pressing of the ESC-button while holding a file, which apparently helped a lot of people, but it doesn't seem to work for Win 10.

To put it differently: Where can the Windows Explorer's drag-and-drop properties be changed?

This is one of the side-effects of removing the Quick access section by modifying the Attributes registry value for Quick access shell folder.

HKEY_CLASSES_ROOT\CLSID\{679f85cb-0220-4080-b29b-5540cc05aab6}\ShellFolder

Setting the Attributes value to a6000000 causes this problem. Check out the last part of this page for an explanation: How to Remove Quick access and Other Shell Folders from File Explorer?

I've changed the "Attributes" key from a0600000 to a6000000 and after reboot D&D into the navigation works as fine as before.

completely key was:

HKEY_CLASSES_ROOT\CLSID\{679F85CB-0220-4080-B29B-5540CC05AAB6}\ShellFolder