Windows 10, version 20H2 available for commercial pre-release validation

Published 08-20-2020 03:41 PM 97.8K Views

Windows 10, version 20H2, is now available for commercial customers to begin feature exploration and validation prior to being released for general availability.

As previously announced, version 20H2 will be delivered to devices currently running Windows 10, version 2004 using an enablement package. This is the same technology we used to update devices from Windows 10, version 1903 to version 1909. Do you want to see how quickly devices update from version 2004 to version 20H2, and how little downtime is involved? Do you want to explore the new Local Users and Groups mobile device management (MDM) policy, which allows administrators to make granular changes to a local group on a managed device? Now you can!

You can access Windows 10, version 20H2 through all standard outlets, including Windows Update, Windows Server Update Services (WSUS), and Azure Marketplace, or you can download an ISO file. If you manage updates directly from Windows Update, or have devices enrolled in the Beta Channel (previously the Slow ring) or the Release Preview Channel for validation purposes, you don’t need to take any action. Windows 10, version 20H2 will be automatically deployed to all commercial devices in the Beta and Release Preview Channels and those who have devices on Windows 10, version 2004 will get to experience the remarkably fast update that comes with moving from version 2004 to version 20H2 via an enablement package.

Note: We consider a device a commercial device if it isn’t running the Home edition of Windows 10, is being managed by an IT administrator (whether via Microsoft Endpoint Manager or a third-party MDM tool), or if the device has a volume license key, a CommercialID, or is joined to a domain.

As with Windows 10, versions 1903 and 1909, versions 2004 and 20H2 share a common core operating system with an identical set of system files. New features are included in monthly quality updates for version 2004 in an inactive and dormant state. These new 20H2 features remain dormant until they are turned on through the “enablement package,” a small, quick-to-install “master switch” that activates the Windows 10, version 20H2 features.

The enablement package is a great option for installing a scoped feature update like Windows 10, version 20H2 as it enables an update from version 2004 to version 20H2 with a single restart, reducing update downtime.

If you are managing updates with WSUS, you will have the option of taking a full feature update to 20H2 or testing out the enablement package path. As with any other validation done on pre-release updates published to WSUS, you will need to first ensure that you have synced the “Windows Insider Preview” category. Once you have synced this category, you should see the following updates show up in your console as shown below:


Note: Windows 10, version 20H2 will be made available as an enablement package to devices already running Windows 10, version 2004 that have also installed the June 2020 monthly quality update. It will be available as a full feature update for devices running Windows 10, version 1909 and prior. To see the greatest number of new features, we recommend being on the latest cumulative update.

To test out this experience on a virtual machine, check out the Windows 10 Preview on Azure Marketplace or, if you would prefer, you can download the Windows 10, version 20H2 ISO.

We not only want to ensure that you have access to the upcoming Windows 10 feature update payload via any channel you may use today, we also want to enable you to validate with confidence. Therefore, customers in the Windows Insider Program for Business can once again receive Microsoft Support for the Windows 10, version 20H2 build available through WSUS, ISO download, Azure Marketplace, and directly from Windows Update in the Beta and Release Preview Channels. If you run into a severe issue that prevents you or other users in your organization from using a device, or compromises security or personal data, use the online form to request assistance directly from Microsoft Support—at no cost to you.

We hope you enjoy Windows 10, version 20H2!
~ The Windows Insider Program for Business team

For more information, check out these useful links for exploring and validating pre-release Windows feature updates:

Super Contributor

And i guess same as with 1903/1909 you won't be able to tell these versions apart in WSUS as they will have same version of Windows Update dll.


When will the ISO become available please @Aria Carley  ?


@Oleg K if you are looking directly at the file versions of .dlls on the system then you are correct that like 1903/1909 that 2004/20H2 will look identical given the file versions themselves are identical. 


@Peter Whitehouse the ISO is available here (see screenshot below). The link was wrong but has since been updated. Apologies about that! 

Super Contributor

Well, i'm not looking at dlls myself. It's WSUS which does to figure out the version of Windows.

Frequent Visitor

I'm running Windows 10 Pro x64 on a personal PC with Realtek HD Audio.


I hope the next version of Windows will fix the bug in v2004 that creates audio buzzing.  Every time there is a sound, it breaks into a buzz.  I'm not the only one with this problem although it doesn't seem common.  Changing the audio IRQ to a Message Signaled Interrupt didn't help.


So I can't update to v2004, which is OK, but a long-term problem will be huge for me.


@Oleg K thank you for that feedback! I will look to see if there is anything we can do to better differentiate in WSUS. 


@Poppy_Doppy Did you submit a bug via FeedbackHub? If so, please feel free to message here or me directly with the bug number so that I can investigate. Thanks! 

Frequent Visitor

Thanks for the reply.  I have now submitted my problem via Windows Feedback Hub (screenshot attached).  However, that system did not assign a "bug number".  It did give me an link but that opens in my own FH app so I'm not sure that you can use it or that it's safe to post.


To avoid any go-arounds, I'm duplicating my report text here:


Windows 10 Pro x64 with AMD Ryzen CPU on MSI Creation x570 mobo with Realtek HD Audio; GTX 1080ti graphics card. All (and I mean all) drivers up to date including chipset, gfx etc.


When I updated Windows from v1909 to v2004 on 24 Aug, speaker output audio began to "buzz". Any volume spike on the sound would break into a buzz, which would stop after ~1 sec but recur on the next volume spike. Normal speech patterns would do this, and all Windows system sounds etc. Oddly, this was not heard on Bluetooth audio.


This is reported by others and I found guidance on setting Message Signaled Interrupts instead of IRQs. But doing this for the audio driver did not help. Reverting to Windows v1909 cured the problem. However, that broke a crucial 2-factor auth app so I don't want to simply try v2004 again.


I'm quite worried long-term unless MS can find and fix something here.


FH report - Win v2004 corrupts audioFH report - Win v2004 corrupts audio


Senior Member

very nice ❤:thumbs_up:


@Poppy_Doppy thanks for submitting! I have found the feedback and routed it to the right folks. 


@Mosumaharramov thanks! 

Occasional Visitor

KB4571744 caused that recurring issue again with VPN.  When connected to my employer's OpenVPN server on my Windows 10 Pro laptop, connectivity to all native apps - including Office - was blocked.  Internet access via a browser was unaffected.  I uninstalled KB4571744 and this fixed my issue.

Senior Member

Hello everyone, I will be using Windows 10 Insider Preview for the first time. Is the red text alert a big problem?


Thank you for your help!


The next Windows feature update is ready and includes reliability, performance, and security improvements.

Windows 10 Insider Preview 20206.1000 (rs_prerelease)

Status:Downloading - 73%Desktop Screenshot 2020.09.05 - Screenshot 2020.09.05 - Screenshot 2020.09.05 - Screenshot 2020.09.05 -

Senior Member

That red text is gone:smile: Thank you!Desktop Screenshot 2020.09.05 -

Honored Contributor

This is good news, 20H2 has been very stable so far, using it on my main PC.

Occasional Visitor

Odd I am on release preview channel non Business and still haven't received the update.


@Xanaidu currently 20H2 is only available to commercial customers in Release Preview. We have not yet made 20H2 available to consumer (non-business) customers on release preview. If you are using your consumer device, enroll in Beta Channel and "Check for Updates" to get 20H2. 

Regular Visitor

@Aria Carley 


Poppy_Doppy should try to update the Realtek audio driver for the MSI Prestige X570 Creation board from MSI's web site - MSI released v6.0.8991.1 of the Realtek HD Universal Audio driver on Aug. 31.


I'm not experiencing any sound problems like his with Win10 v2004 & I'm using an old HP Pavilion desktop PC that has onboard Realtek ALC888S audio chipset - using v6.0.8978.1 of that audio driver

Occasional Visitor

nice, i love that update

Regular Contributor

@Aria Carley any documentation around this

"Do you want to explore the new Local Users and Groups mobile device management (MDM) policy, which allows administrators to make granular changes to a local group on a managed device?"

Is it related to the CSP LocalUsersAndgroups which is not found here in the MS Docs ?

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‎Aug 20 2020 03:41 PM
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