Select the location to save the Windows 10 21H1 ISO file. (Usually, you want to select the 圆4 option.) Select the operating system architecture ( 圆4 or x86). Select the language of Windows 10 21H1 (May 2021 Update). Under the “Release” section, select the 21H1 (Build 19043.xxx – 2020.05) option to download the Windows 10 version 21H1 ISO file. Under the “Boot selection” section, use the drop-down menu, and select the Disk or ISO image option.Ĭlick the down-arrow button on the right side, and select the Download option.

Quick tip: You do not need to connect a USB flash drive if you only want to download the ISO file. To download the Windows 10 21H1 ISO file, use these steps: Download Windows 10 21H1 ISO after 21H2 releases In this guide, you will learn the steps to use Rufus to download the ISO file and create a USB to install Windows 10 21H1 after version 21H2 (November 2021 Update) releases. The difference with the Media Creation Tool is that the tool includes an option to download the ISO file and prepare a bootable media using an older version of Windows 10. Rufus is a third-party tool designed to create a USB flash drive to install Windows. However, if you have to install an older version of Windows 10, you can use “Rufus” to download the Windows 10 21H1 ISO file after the release of version 21H2. If you need to roll back, you can usually use the recovery option to uninstall an upgrade, but the option is only available for the first ten days, and sometimes it does not even work.

When a new version of Windows releases, an updated version of the Media Creation Tool and Update Assistant becomes available to upgrade computers to the latest version, making it impossible to use the same tools to downgrade if you prefer an earlier release. Although Windows 10 21H2 has been released, it’s still possible to download the ISO file for version 21H1 to perform a clean install or roll back to the previous version.

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