About this update
This update adds capabilities to some computers that lets users easily learn about Windows 10 or start an upgrade to Windows 10. Before you install this update, see the Prerequisites section. For more information about Windows 10, see Windows 10.
How to get this update
Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
This update is provided as a Recommended update on Windows Update. For more information about how to run Windows Update, see How to get an update through Windows Update.
Update detail information
To install this update, install the April 2014, update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) in Windows 8.1. Or, install Service Pack 1 for Windows 7.
To apply this update, you don't have to make any changes to the registry.
You may have to restart the computer after you apply this update.
Update replacement information
This update doesn't replace a previously released update.
Learn about the terminology that Microsoft uses to describe software updates.