Explorer: Hidden folders are visible

In Explorer, when I select my user name I can see several folders that I was not expecting to see.

They are marked as "Hidden" and are hidden in the main panel, so why are they visible in the folder tree? And what can I do to really hide them?

check to see if you have show hidden folder checked in your settings.
open a explorer window ,click organize / folder and search options. in the window that opens click the view tab and look at the hidden files and folders , check the dont show hidden folders files and drives.
click apply then OK.

Hidden Files and Folders - Show or Hide

... That preference was already sent to "Don't show ...." (but I had set it to "Show ..." temporarily earlier in the day

If I pick "Show ..." then they appear in the right-hand side too.

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Ah ha - I may have found something.

Today, when I looked again at the folder, the "hidden" folders were not shown (just what I wanted). I set the Folder Option preference to "Show ..." and they appeared in the right-hand side, but NOT in the folder tree. Clicking [View] >> Refresh did not display them there either. Closing Explorer and re-opening it triggered a refresh.

So:
-- changing the "Show/Don't show" preference does not refresh the folder tree,
-- [View] >> Refresh does not (necessarily) update the folder tree,
-- Closing and re-opening Explorer sorts it out.

If you see the same behaviour, it may be worth adding that last point to the tutorial.

glad you got it sorted,