An update is available for Windows 8.1 Preview. This update will improve the user experience when you upgrade to the Release to Manufacturing (RTM) version of Windows 8.1 when it is released. After the update is applied, download failures and installation issues will be reduced when you upgrade through the Windows Store.
This update (2880312) is available from Windows Update.
To obtain this update, follow these steps:
Swipe in from the right edge of the screen, and then tap Search. Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.
In the search box, type Windows Update.
Tap or click Check for updates.
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