Update for Windows 8.1 OOBE to upgrade to Windows 10
This update is for Windows 8.1 out-of-box experience (OOBE). This update lets you start an immediate free upgrade to Windows 10 during the Windows 8.1 OOBE process. This update applies only to the Windows 8.1 OOBE process. It is available only when the OOBE updates are installed.
About this update
You can find answers to frequently asked questions about the free upgrade at the Windows 10 Q&A page.
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.