Windows 8.1 Update 1

Windows 8.1 - KB-2919355 - Update 1 (ServicePack)

Windows 8.1 - KB-2919442

Update 1 für Windows 8.1 - ServicePack

Stack-Update für Windows 8.1 - notwendig für Update 1

http://support.microsoft.com/kb/2919355

http://support.microsoft.com/kb/2919442