I'm using IE11.
Youtube have gone over to HTML5 it seems from about of the start of this week, which now restricts the quality of the videos that can be viewed in IE 11, I wonder why??
I could easily watch the 4k videos, after a fashion.
They have now removed that option, even 1080 has gone.
Are they trying to force users to other browsers.
I don't want any other browser IE11 works great.
I don't want Win 8.1 either or 10, 11 or whatever else they come up with.