04-23-2014 04:03 PM
Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update is a cumulative update that includes all previous released security updates and nonsecurity updates. In addition to previous updates, it includes improvements such as improved Internet Explorer 11 compatibility for enterprise applications, usability improvements, extended mobile device management and improved hardware support. http://support.microsoft.com/default.aspx?scid=kb;
Important All future security and nonsecurity updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require this update to be installed. We recommend that you install this update on your Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2-based computer in order to receive continued future updates. http://windows.microsoft.com/en-us/windows-8/insta
In other words you must have Windows 8.1 Update 1 to get further updates from Microsoft!
Webroot® SecureAnywhere™ Internet Security Complete Beta Tester v126.96.36.199 on my main system Alienware 17R2 with Windows 10 Professional x64 Version 1607 (Build 14393.447) & Motorola Moto Z Android 6.0.1 Marshmallow with WSA Mobile Complete v188.8.131.5260 which is full Cloud now as well! I also test new Windows Insider 32bit & 64bit builds on Virtual Machines.
Microsoft® Windows Insider MVP - Windows Security