Windows 10 20H2 released as final build in Release Preview Channel

[German]Microsoft has started to distribute the feature update for Windows 10 20H2 as 'final build' to Windows Insider via the Release Preview Channel. The general release should follow in October 2020.


The information reached me as a comment from EP in the English language blog (thanks) for that. Microsoft has announced the whole thing in the Windows blog.   

Windows 10 October 2020 Update (Version 20H2)

According to Microsoft, the Windows 10 version to be released in autumn 2020 will be named the 'October 2020 Update'. Microsoft is moving away from the 2009 scheme and using the nomenclature 20H2, where 20 indicates the year of release (2020), while H2 is the second functional update of the year.

Update KB4571756 for Insider in Release Preview Channel

Microsoft describes Windows 10 version 20H2 as ready for release. Therefore the update KB4571756 for Windows Insider has been released in the Release Preview Channel. How to join the Insider program and the Release Preview Channel is described in the Windows blog.  

This update is the so-called Enablement Package. The update is only about 80 MB in size and enables the functions of the 20H2 (the code base is the same as the 20H1, also known as version 2004). Additionally, the Chromium Edge Browser from Microsoft is installed.

The update raises the OS version to build 19042.508 and Microsoft assumes that this is the final build for Windows 10 20H2. However, Microsoft will continue to improve Windows 10 version 20H2 through updates until it is released in the normal maintenance cycles. The colleagues from have published an overview of the new features here


To get this update offered in the Release Preview Channel as a Windows Insider, you have to go to Windows Update in the settings page and let it search for updates (Settings > Update & Security > Windows Update). Then the Windows 10 version 20H2 should be offered as a (feature) update. You can download and install this update. If a system has been updated to the October 2020 update, it will still automatically receive new maintenance updates via Windows Update (as with the monthly update process).

Microsoft writes that they are starting to automatically release the October 2020 update to insiders who are in the beta channel. So people there don't need to search for updates. For Windows insiders who had not decided to install the October 2020 update before, it will be offered automatically via Windows Update.

A known issue

But in the now rolled out build there is a problem which is known for a long time (also for older Windows 10 versions) and was caused by updates (see my blog post here). Windows insiders who have installed build 19042.508 in the beta and release preview channels get problems with WSL 2. If the Windows subsystem for Linux (WSL) is started, it terminates with the error "Element not found".

Microsoft states that they used insiders to identify the root cause of the problem and created a fix. This fix should be included in the next 20H2 service release soon. Further details can be found in the Windows blog

Similar articles
Windows 10 20H2 Build 19042.508 (KB4571756) for Insider
Windows 10 V2004: Enablement-Update KB4562830 to 20H2
Windows 10 V2004: Microsoft started to add 20H2 features
Windows 10 20H2 will (probably) be a minor Update

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