Can't get folder share, drag-drop or clipboard to work - Win10 server running a Win7 VM

[HoloPed]

Hey all,
I have a Windows 10 server that is running VirtualBox 5.10 and a Win7 virtual machine.

I installed guest additions on the Win7 VM. I enabled bidirectional copy-paste and file drag-and-drop, and I've added a shared folder, but none of this works.
The shared folder is nowhere to be found inside the vm, copy-paste does nothing and file dragging is refused.

Any ideas?

[mpack]

Please post a VM log file. With the VM fully shut down, right click and "Show Log" in the GUI, save "VBox.log" (no other file) to a zip, and attach the zip here.

It would be useful if you also include the VMs ".vbox" file in the zip.

[BillG]

If host and guest are both Windows, why not use Windows file sharing?