Windows Media player won't play DVD (VIDEO_TS folder with .IFO, .BUP & VOB files)

I have Windows Media Player  12.0 and Windows 10 on a Microsoft surface Pro 4

Nothing happens when I do all of the following: 

1. I double click the .IFO file in File Explorer which it shows is associated with Windows Media Player.
2. I drag the .IFO files (or the VIDEO_TS folder ) onto the right side pane where it says “drag items here to create playlist”
3. I right-click on a new playlist in the left side navigation pane, click open file location and select the .IFO file
4. I drag .IFO files (or the VIDEO_TS folder ) onto the playlist name in the left side navigation pane

Other information:

1. I try opening the Windows MediaPlayer troubleshooter. It finds nothing wrong.
2. I have no problems with .MOV files.
3. The Microsoft virtual assistant says to try to update the Codecs and gives a link of http://windows.microsoft.com/en-US/windows7/Codecs-frequently-asked-questions, which redirects to a generic window for Windows help.

What am I missing?