>>>Hi,
>>>
>>>I copy files from my computer to an external drive using robocopy command. I can get to the files on the external drive by going to a command prompt and using CD dirname. But when I open the external drive using Windows Explorer, the folders appear to be empty.
>>>
>>>How do I make all folders on the external drive visible?
>>
>>If you Robocopy the files while File Explorer is open, you may need to refresh File Explorer (F5 key). I've seen cases where that doesn't work, and I've needed to close, then re-open File Explorer.
>
>I can't think that this issue has anything to do with whether File Explorer (or Windows Explorer) is open or not during the Robocopy. It is just that I can unplug the external drive, plug it back in, no matter what, when I open the Windows Explorer I see only the top folder where I started Robocopying the files.
>Example:
>The top folder on the drive is H:\DELL1234 (name of the computer which I back up). Then, under H:\DELL1234 is DRIVE_D folder, I can see this folder from Windows Explorer. Under DRIVE_D should be BACKPUK1 and I don't see this folder, no any other folders and/or files below BACKUP1. The Robocopy command syntax is:
>
>

>robocopy d: h:\dell1234\drive_d\backup1\  /mir 
>

With that command I'm not sure what you're trying to do. Are you trying to mirror the entire d: drive? If so, the source argument should be "d:\", not "d:" (without the quotes in both cases). The latter specifies the current folder on drive d:, not the root; if there are no files in the current folder on d:, nothing gets copied.

https://stackoverflow.com/questions/23302049/run-robocopy-bat-to-copy-entire-drive-to-another-drive