Windows 8 and Windows Server 2012 update rollup: January 2013

Applies to: Windows 8Windows 8 EnterpriseWindows 8 Pro

Important The following Microsoft Knowledge Base (KB) articles redirect you to this article:
  • 2788350
  • 2790920
  • 2792009
These updates are included in update 2785094 when you install it by using Windows Update.


This article describes the update rollup for Windows 8 and for Windows Server 2012 that is dated January 2013. This update rollup package includes performance and reliability improvements for Windows 8 and for Windows Server 2012. We recommend that you apply this update rollup as part of your regular maintenance routines.


This update rollup includes the following performance and reliability improvements:
  • Resolves an issue that could cause low-quality playback when you stream videos from Windows Media Center to Xbox consoles.
  • Improves Bluetooth audio playback quality.
  • Resolves an issue in which you may be unable to install a Windows Store app update when the app is installed to multiple accounts on the same computer.

More Information

Update information

How to obtain the update

This update is available from Windows Update.

  • This update is provided as an important update.
  • If you select the Install updates automatically (recommended) Windows Update setting, this update is installed automatically.
  • If you select other Windows Update settings, we highly recommend that you install this update through Windows Update immediately.
You can also obtain the stand-alone update package through the Microsoft Download Center. For more information, go to the Microsoft Download Center, and then search for KB2785094.


To apply this update, you must be running Windows 8 or Windows Server 2012.

Restart information

You must restart the computer after you apply this update.

Update replacement information

This update does not replace any previously released update.


If you have questions about Windows Update, go to the following Microsoft websites: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