* etc/PROBLEMS: Mention that the issue was fixed in later
Windows 10 builds.
expected effect of the icon you clicked on being converted to that
button.
+This is due to a bug in early versions of Windows 10, reportedly fixed
+in build 1511 of Windows 10 (a.k.a. "Windows 10 SP1"). If you cannot
+upgrade, read the work-around described below.
+
First, be sure to edit the Properties of the pinned icon to invoke
runemacs.exe, not emacs.exe. (The latter will cause an extra cmd
window to appear when you invoke Emacs from the pinned icon.)