You have a computer that is running Windows 8.1 or Windows Server 2012 R2.
You install Windows Live Messenger by installing Windows Live Essentials with Chinese Simplified language.
You start Windows Live Messenger, and then you try to sign in.
In this scenario, the sign-in attempt fails. Additionally, you receive an error message that resembles the following:
This issue occurs because code mishandling occurs during session key encryption.
To resolve this issue, install update rollup 2903939. For more information about how to obtain this update rollup package, click the following article number to view the article in the Microsoft Knowledge Base:
2903939 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup: December 2013
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates