Windows 10 Web Essential version 2.6.36 doesn't show preview pane for less codes.
However same version displays preview in Windows 7.
win7x64, vs2015 upd3, WE 2015.3 (3.0.235)
cause in WE 2015 no any LESS, SASS, etc.
switch to vertical splitting. open less file in left and css file in right. looks fine. auto
compilation by web compiler.
Problem with this that it always shows a new dialogue that file is changed outside VS
set checkbox in notification window next time - and it never will be shown again