Solution: http://superuser.com/questions/958217/cant-open-new-file-explorer-windows-by-right-click-on-windows-10/976515#976515
Type: Posts; User: morrallas
Solution: http://superuser.com/questions/958217/cant-open-new-file-explorer-windows-by-right-click-on-windows-10/976515#976515
With Cubby open (Cubby.com - Cloud storage, syncing and sharing, with a smile.
), pinned folders doesn't work. After close Cubby, pinned folders are working.
Same problem here. Windows 10 Pro upgraded from Windows 8.1.