Windows 10 Insider Preview 21364 ISO Offline Download

Windows Insider is a way to taste upcoming features in Windows 10 stable release, In this case, 21H2 (version 2109). This is a comprehensive guide on how to download (or build) Windows Insider preview ISO files and get them installed on your computer. First, a Windows insider is more like beta Windows 10.

Microsoft releases many insider previews to test things out, sometimes those features and tweaks make a place in the final version but mostly may not. So it feels good to experience the features that may or may not last forever.

Download stable Windows 10 latest version (version 21H1) ISO system image files.

Download Windows 10 Insider preview

Current build 21364 (21H2) Windows 10 version 2109 released on 04/21/2021 (mm/dd)

Use the below download button to choose from 32-bit and 64-bit Windows 10. We are using this tool to download UUP files from Microsoft servers. The tool automatically converts UUP files to ISO in the end, so YES, you can build the latest insider preview ISO images at home, 100% original and safe.

Current insider preview Dev channel codename is 21H2.

Follow these steps to get your Windows 10 ISO.

  1. Download the appropriate tool (created by the folks from uupdump.ml)
  2. Extract the zip file by clicking right and selecting Extract all.
  3. Run the run UUP_download_windows.cmd file for Windows.
  4. Let the process complete, it’ll consume somewhere 3-4GB bandwidth, please read the step-by-step instructions.

This insider is from Beta channel version 21H2.

Build Original Windows 10 Insider Preview Build ISO

Warning: many people still rely on the internet to download ISO from the internet which often led your PC get infected, folks over uupdump.ml created this script that compiles ISO using original files obtained through Microsoft servers.

  1. Download the script from the links given above, use the 64-bit link to download 64-bit Windows 10 UUP files. And use the 32-bit link to build 32-bit Windows insider preview ISO.
  2. Now extract the tool, right-click and select Extract All option.
  1. Open the extracted folder, run uup_download_windows file, this script is an automated script that will download all the files using the Aria2 download program. This is necessary to download multiple files at once.

This will take some minutes, use a high-speed internet connection. you can see the progress inside the command prompt window and all the files that this tool download is from Microsoft server, so yes there is no involvement of third-party files.

Windows 10 insider latest ISO making using Command prompt
It will download around 2-3GB. You can see files stored in /UUP folder.

If for some reason, you see an error in downloading, just close and start the tool, it will skip downloaded files and confirm all files are downloaded.

The new version of the tool, automatically creates ISO from the files. However, if you wish to manually trigger the ISO building process, read step 4.

(Optional) Step 4. Once done, this script will execute another tool that you can find inside the same folder. Run the convert-UUP to start converting downloaded files to Windows 10 Insider preview ISO.

Get Windows 10 Insider preview UUP files and change it to ISO file: In case you don’t trust the ISO from 3rd party website. You can fetch all the UUP files for the latest Insider preview build and convert them into a single ISO file for installation purpose.

Install Guide – Install Windows 10 from USB | Step by step guide with images]

Getting the latest Insider build.

Step 1. Go to computer settings, press Windows Key + I (shortcut)
Step 2. Update & Security > Windows insider program > Setup with Microsoft Account.
Step 3. Update & Security > Windows update > check for update.

This should hook you with the insider program, and you will get the latest insider build if you choose Skip Ahead at the time enabling insider program.

Windows 10 Insider Preview

Download from Microsoft. What’s available: Build 21354 (April 2021), Insider Dev and Beta channel, Insider Enterprise.

  1. First, go to this page and log in to a Microsoft Live account, if you don’t have to create one. Unlike downloading a Windows 10 stable ISO, this will require a Sign in.
  2. From the page select the Edition and the Language. Here I choose “Win 10 Insider Preview – Build 21354. Not every recent version is available from Microsoft if you didn’t find a recent version by using this method, feel free to jump at the bottom of this article where we add links to the latest versions.
  3. Links will be created for both 64-bit and 32-bit machines; you need to download one according to your PC architecture. How do I know which one I have?

Remember those links are only valid for a 24-hour period, (optional) If you wish to download the file in a few days here is how to do that. Basically, you can remotely download the file to any cloud storage by pasting the link provided by Microsoft. After that, you can download the file from the cloud storage the usual way.

Creating Bootable Media

There is more than one way to create a bootable installation media. Creating a bootable USB is a fast way, and installing Window 10 from USB just makes sense.

Hope this helps you to get your hands on the latest features and new tweaks. Do more with Windows 10 here are some interesting guides to get going.

Features

Windows Insider is like the treat for Developers and tech-savvy people who are interested to test out upcoming and bleeding-edge features of Windows 10. This article helps folks in downloading Windows 10 insider ISO (building one on your own).

Windows 10 insider preview is divided into two channels, one is beta and the other is Dev. Beta is the next version that is going to release, while he Dev channel includes features that can make it into the next stable update. It’s counterintuitive to test the Beta channel, rather just download and hop to the latest Windows 10 insider preview ISO and get it installed on your computer.

20 comments
  1. i get to the part where it says windows will reboot. after the installation is past 100% and it says failed. I don’t know why this is in all caps. I can’t make it lowercase.

  2. I cannot get “UUP_download_windows.cmd” to run. what is the secret? I am trying to create a bootable win 10 ISO on a win7 PC using Rufus to re-install the latest win10 build after debian (grub) destroyed my mbr.

  3. I enjoy what you guys tend to be up too. This kind of clever work and exposure! Keep up the amazing works guys I’ve you guys to my personal blogroll.|

  4. hey guys help me out. my notebook(lenevo y50-70) that was preinstalled with win 10 is flashing a message that my windows copy is not genuine after the december 2017 insider update(build no170633). i have been in the insider programme since 2016 and never faced such an issue. the activation tab is showing error code:0x80080005. plz help

    1. Hellu Satya, If you install the same windows 10 edition (that came preinstalled) windows will automatically get activated using a digital key. Most laptop comes with Single language Windows, so if you install “Professional” or Home edition, you’ll need separate activation key.

      So use the same edition.

      If you want to get involved in Insider preview, test them on a spare computer.

  5. So, I’ve tried 2 different versions of this… and both say it’s older than the one I’m already on… 16251.

  6. u have no EN- UK language iso, u only got the american version which has conflicts with the native uk keyboard layouts e,c,t

    1. Hey, Danny, Windows 10 Insider Previews uses “Digital Licence” activation meaning you don’t need to input any KEY. Also if you’re updating from an activated Win 10 to Insider Preview you don’t need to do anything it will be activated.

      But I’ve found these keys from reddit as people use them for Insider preview purpose.

      8N67H-M3CY9-QT7C4-2TR7M-TXYCV // 6P99N-YF42M-TPGBG-9VMJP-YKHCF // NKJFK-GPHP7-G8C3J-P6JXR-HQRJR

    2. Try this product key if you have (X 64) bit OS pro windows 10 to bypass installation screen:

      Windows 10 Home
      ********** TX9XD-98N7V-6WMQ6-BX7FG-H8Q99
      Windows 10 Pro *********** W269N-WFGWX-YVC9B-4J6C9-T83GX
      Windows 10 Enterprise **** NPPR9-FWDCX-D2C8J-H872K-2YT43
      Then activate with Ms toolkit (1st dl ti manually)
      1. Click Right Button on Microsoft Toolkit
      2. Click on Run As Administrator
      3. Clik Yes
      4. Click Windows logo Beside Settings
      5. Click Activation
      6. Click Install
      7. Click Activate

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