Microsoft has removed the Windows Journal application from its OSs due to the presence of multiple security flaws that can be exploited by hackers through specially crafted Journal files. Windows will show them a security alert whenever they attempt to open Journal Note (JNT) or Journal Template (JTP) files. Microsoft recommends that all users install this update immediately. Users who need to use Windows Journal can decide to install it separately after they apply the update KB3161102. Microsoft suggests its customers the migration to OneNote, anyway.”]
Source: http://securityaffairs.co/wordpress/51678/hacking/windows-journal-removal.html