How do you copy Files to My Cloud?

My Cloud OS 3 Personal & Network Attached Storage My Cloud
1

I wanted to copy a bulk of my data from an external disc connected to my laptop to MyCloud, not much some 25 GB.

All directories and subdirestories were nicely copied, but no files… All directories & subdorectories now copied into Mc Cloud are empty.

What to do?

To drag / drop or copy every single file into appropriate disrectory / subdirectory? 

This can not be true.

Anyone can help with the suggestion?

Tks, 

2

Tks for intesrest.

I started copying task with usual CTRL+C and paste with CTRL+V

I copied into an directory which is not of the same name as directory on the laptop disc.

But I am copying now part by part within simple Windows Explorer and it appers that it works.