Hi MBB,
Thanks for clarifying the issue. As you said, the drag and drop technique is needed for you to edit the files or create discs as this is the only way to put them on the window on the right of the page. May I ask if this issue also happens when using a different computer? The PlayMemories Home software should be fully compatible with the Windows 10 OS. I recommend uninstalling the program and reinstalling it without a network connection. After installation, download the disc creation add on again.
If you encounter any errors in downloading the software, please disable the firewall and antivirus programs of the computer and restart installation.
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