Thread:Extension talk:WYSIWYG/Image copy/paste from word and clipboard doesnt work/reply (5)

Did you notice that you have to apply fix_of_empty_page_in_IE11 manually, because that file does not belong to wysiwyg extension. You also should have LocalSettings.php as is shown here: toolbar of WYSIWYG with WikiEditor. You should also check that your account Preferences=>Settings does not conflict, do not tick these: Show WikiTextEditor, Start with rich editor disabled, Open rich editor in a popup).

I have now fixed the backward compatibility issue with fix for corrupted category definition in #6 bundle based on Ricordisamoa's advice (extra_|_corrupts_category).

IE11 requires that on page "Tools=>Compatibility View settings" option "Display intranet sites in compatibility view" is selected (in case your wiki is internal or add site name to the list if it is external). With this setting on (#6 bundle) wysiwyg works ok with IE11. If I deselect that setting in IE11, wysiwyg editor won't start and it reverts to wikieditor.