In this article, you'll learn more about the HoloLens RS4 Preview. This preview is available to all HoloLens users, however, please note that installing this preview will erase all of your content and restore your device to factory settings. Like any pre-release software, you may encounter bugs and other issues along the way. For this reason, Preview builds are made for people who know their way around HoloLens and donít mind frequent updates with significant changes.

In order to install this preview, you must first download the latest version of the Windows Device Recovery Tool and ensure that your HoloLens is enrolled in the Windows Insider Program. After installing the preview, check for updated preview builds with Windows Update.

Update history

Update 4 - Build 17134.1004

Released April 25, 2018

This build is delivered over the air (OTA) through Windows Update to devices that already have the HoloLens RS4 Preview, or can be manually installed using the HoloLens RS4 Preview package at the top of the page.

General changes, improvements, and fixes:

  • App launch times.
  • Animated 3D app launchers.
  • Device management tool.

Source: HoloLens RS4 Preview - Mixed Reality | Microsoft Docs