Showing two D drives in Explorer  

Hey jack834,
Hmm ... In your screen shot where it shows ... D:\ ... that's suppose to be the 3D Objects folder (that's the 3D Objects Icon ). If you click on it, does it show files that are/would be in D:\ or is it empty ???

Jak,

That is indeed supposed to be your "3D Objects" folder. It looks like you may have moved it by mistake.

If so, you can use step 2 in Option Two of the tutorial below to restore its default location and hopefully sort this for you.

Restore Default Location of Personal Folders in Windows 10 | Windows 10 Tutorials

Hey thanks, I'd wondered what I did to the 3d folder! And it's back and the D is gone. Now just the Data D.
So those other folders that were right under D are still there:

Desktop
Documents
Music
Pictures
Videos

And they are exact copies of the same folders that are in Data (D:). Possible to just delete them? iTunes is in that Music folder as well and maybe that's causing iTunes not to find the library. ??

Then again maybe I just didn't load my music correctly on the ext hdd to transfer it to this Win 10 from my 7.

The folders under the "This PC" group in the navigation pane are correct and suppose to be there by default. Those are the "Folders" you see at the top of the "This PC" window in File Explorer.

Let's see a screenshot showing "Data (D:)" expanded in the navigation pane.

As a test, right click on each of the folders under "This PC", click on Properties, click on the Location tab, and look to see what they're current full path location is like below.

Are they located in your "C:\Users\<username>" folder, or on your "Data (D:)" drive?

I was thinking that they got moved to "D".

You can use the same Option Two in the tutorial below for each affected folder to restore their default location.

Restore Default Location of Personal Folders in Windows 10 | Windows 10 Tutorials

By default, they should be in your "C:\Users\<username>" folder unless you moved them to D.