[v5.6] Windows KMS Activator Ultimate – Fat but easy and safe Windows & Office universal activator

Windows KMS Activator Ultimate (WKAU for short, formerly called KMS Activator Ultimate) is an easy-to-use and safe-to-use (without any type of virus and no harmful effects to any system files) activator for Microsoft Windows Vista, 7, 8, 8.1, 10, Windows Server 2008, 2012 and Office 365/2010/2013/2016/2019. Compared with similar tools, it's a big file size.