bug#23882: 25.1: loading some desktops from 24.5 results in horizontal scrollbar everywhere

[Eli Zaretskii]

> Date: Sat, 02 Jul 2016 14:02:28 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 23882@debbugs.gnu.org
> 
> > From: Nikolay Kudryavtsev <nikolay.kudryavtsev@gmail.com>
> > Cc: 23882@debbugs.gnu.org
> > Date: Sat, 2 Jul 2016 13:34:15 +0300
> > 
> > Eli, by everywhere I do mean every single buffer.
> 
> Then I cannot reproduce that.  Using your recipe, with Emacs 25.0.95,
> on MS-Windows, I get a single window displaying the buffer "whatever",
> with no horizontal scroll bar.  If I switch to *scratch*, I see no
> horizontal scroll bar there, either.  The value of
> horizontal-scroll-bar-mode in both buffers is nil.
> 
> So I guess something else is at work here.

And my first suspect would be the packages you have installed.
Perhaps one of them turns on horizontal-scroll-bar-mode?