Update for Windows 8.1 OOBE to upgrade to Windows 10

About this update
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.

You can find answers to frequently asked questions about the free upgrade at the Windows 10 Q&A page.
How to obtain 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.

Windows Update

This update is provided as an Optional update on Windows Update. For more information o how to run Windows Update, see How to get an update through Windows Update. ERROR: PhantomJS timeout occurredt occurred