This article describes an update that prevents zombie processes when process snapshotting or process cloning is used in Windows 8.1 and Windows Server 2012 R2. Before you install this update, cloned processes remain frozen and eventually cause a resource leak on the computer. The leak may cause Windows Error Reporting (WER) to crash or freeze during the reporting process.
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
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