Hi, how can I move or transfer over to Photo Gallery, 2 folders with some pics inside, from a Pictures folder under "OneDrive", so I can then attach them to an email going to a friend?

When MS installed W10 in my computer, I couldn't find Photo Gallery anymore and all my pictures suddenly were in OneDrive.  I found it impossible to email my pictures from Photo App so I came back to Photo Gallery but I need to know how to put those 2 folders with pics inside Photo Gallery so I can email them to my friend.

Thanks ever so much for a very prompt help!    :o)