So far I know of these prerequisites
https://support.microsoft.com/en-nz/kb/3089657 – Overview of MS15-102
https://support.microsoft.com/en-nz/kb/3082089 – Windows 8.x and Server 2012/R2
https://support.microsoft.com/en-nz/kb/3084135 – Vindows Vista/7 and Server 2008/R2
- All future security and nonsecurity updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.
- If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language