How to download ISO file of Windows 10 21H1, May 2021 Update

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To gain early access to the first semi-annual upgrade, Windows 10 21H1 has been finalized as the May 2021 upgrade. The final ISO file is currently available for download.

Microsoft has stated that version 21H1, a rapid update that doesn’t require a complete reinstallation, will be released sometime in May 2021. However, if you can’t wait, the company is now making the final version available through its Windows Insider Preview Downloads page.

Before the operating system is made widely accessible, the ISO file is intended to enable business clients to test and verify it. But anyone can download it and use the latest version of Windows 10 right away. The sole restriction is that you may only do a clean or in-place installation that necessitates a complete reinstallation when utilizing the ISO file.

You can gain early access to Windows 10 21H1 by following the instructions in this article to download the ISO file.

To download the Windows 10 21H1 ISO file, use these steps:

Go to the Downloads page for Windows Insider Preview.

Enter your Windows Insider Program login information to log in.

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Choose the Windows 10 Insider Preview (BetaChannel) Build 19043 option under the Select edition section.

To confirm, click the button.

Choose the language of the product.

To confirm, click the button.

Click the “Download 64-bit” button.

The Microsoft download website

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The final ISO for Windows 10 version 21H1 will download to the PC when you finish the instructions.

You must utilize the 32-bitDownloadbutton if you are using Windows 32-bit.

Once the ISO file has been downloaded, you can build USB flash drive media using programs like Rufus. You can just double-click the file to mount the ISO with File Explorer and continue with the setup if you intend to update in-place.

Update May 18, 2021: On eligible devices, the May 2021 Update is now formally available for download. You can obtain it right now by using these resources:

  • Windows 10 21H1 download with Update Assistant tool

  • Windows 10 21H1 ISO file direct download without Media Creation Tool

    Windows 11 build 22509 brings Taskbar clock to all monitors

  • How to install Windows 10 21H1 with enablement package KB5000736

  • How to upgrade to Windows 10 21H1, May 2021 Update

  • How to clean install Windows 10 21H1, May 2021 Update

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