Windows 10 20H1 Insider Preview : ISO image available

Microsoft has released an ISO installation image for the Windows 10 Insider Previews 20H1 Build 18990. These ISO files can be used to install a corresponding Windows 10 Insider Preview 20H1.


I have just seen the info on Twitter and at my colleagues at Here is the text:

As usual the download is only possible for Windows insiders after login on the page To access this page, you need to be a member of the Windows Insider program. In a selection box the ISO file of the Windows 10 20H1 Build 18990 (Fast)-Ring will be offered for download.

The ISO file can be transferred to a USB stick using tools such as Rufus or to a DVD using on-board tools. These can be used to boot and perform a clean install. Alternatively, you should be able to run the setup.exe of the mounted ISO file from a Windows 10 and upgrade it.

The colleagues from lso point out that Microsoft has provided a new version of Windows ADK and Windows WDK as well as the App converter. But this doesn't need a normal Windows insider.


Windows 10 Version 1909 ISO are coming also

It seems that the first ISO files for (I expected it for tomorrow) Windows 10 version 1909 are in Retail ring, as reported within the tweet below.

Let's see when there's official confirmation. I just checked, in the Visual Studio subscription the ISOs do not exist. 

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One Response to Windows 10 20H1 Insider Preview : ISO image available

  1. EP says:

    because MS had to recently release a new set of out-of-band security updates on Thursday Oct. 3, the official release of the 1909 ISOs will be postponed 'til sometime next week.

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