An update is available for Windows 8.1 Preview. This update resolves an issue that could cause a Windows Store app to become unstable after it is updated. This instability may cause Windows Store apps (such as the Music app) to crash.
This update (2866537) is available from Windows Update.
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