UPDATE 5/22:
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As a reminder, these release notes apply to those who are in the Experimental (26H1) channel, formerly known as the Canary 28000 series Channel. As we begin the transition to the updated Windows Insider Program, all new build release notes will be labeled under the new channel names, even though Insiders in the Canary 28000 series Channel may not yet find themselves having transitioned to Experimental (26H1). See the Windows Insider Blog for more details.
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blogs.windows.com
Check Windows Updates
UUP Dump:
64-bit ISO download:
ARM64 ISO download:
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Windows 11 Insider Experimental (26H1) build 28020.2149 - May 22
Windows Insider Blog: Source: Check Windows Updates UUP Dump: 64-bit ISO download: https://uupdump.net/selectlang.php?id=408aa1bb-1ea8-492f-ac44-75663e747a94 ARM64 ISO download: https://uupdump.net/selectlang.php?id=295c347e-b737-45a5-80fd-487c0a6df7f8...
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Windows Insider Blog:
As a reminder, these release notes apply to those who are in the Experimental (26H1) channel, formerly known as the Canary 28000 series Channel. As we begin the transition to the updated Windows Insider Program, all new build release notes will be labeled under the new channel names, even though Insiders in the Canary 28000 series Channel may not yet find themselves having transitioned to Experimental (26H1). See the Windows Insider Blog for more details.
Microsoft improving your Windows Insider experience for Windows 11
Windows Insider Blog: Hello Windows Insiders, Today is the day we’re beginning to move to the new Experimental and Beta channels as announced earlier this month. As a reminder, most Insiders, those who are in the Dev and Beta channels today will transition to the new channels over time as...
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Enable or Disable Get Latest Updates as soon as available in Windows 11
This tutorial will show you how to turn on or off "Get the latest updates as soon as they are available" in Windows 11. Starting with Windows 11 build 22621.1635, Microsoft added a new "Get the latest updates as soon as they are available" toggle under Settings > Windows Update. When you turn...
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Changes and improvements gradually being rolled out*
[Windows Update]
We’re introducing new capabilities to enhance security and improve user control over the Windows update experience. This includes:- Ability to skip updates immediately during the out of box experience (OOBE)
- Extend update pauses as many times as you need
- Always available options to shutdown and restart with updating
- More insight on available updates to make more informed installation decisions
[Other]
- This update improves the reliability of Simple Service Discovery Protocol (SSDP) notifications to help prevent the service from becoming unresponsive.
Known Issues
[Reset PC]
- Resetting your PC may get stuck when using “Reset this PC.” To complete the reset successfully, choose the cloud download option (Cloud PBR) instead of local.
Reset Windows 11 PC
This tutorial will show you how to reset Windows 11 and Remove everything or Keep my files. You can reset Windows 11 when your PC isn’t working well and it’s been a while since you installed an app, driver, or update. Resetting reinstalls Windows 11, but lets you choose whether to keep your...
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Reminder for Windows Insiders in the Experimental (26H1) channel
- These builds can be unstable and may be released with limited documentation.
- Many features in the Experimental (26H1) channel are rolled out using Controlled Feature Rollout technology, starting with a subset of Insiders and ramping up over time as we monitor feedback to see how they land before pushing them out to everyone in this channel.
- The desktop watermark shown at the lower right corner of the desktop is normal for Windows Insider pre-release builds.
- Some features in active development we preview with Windows Insiders may not be fully localized and localization will happen over time as features are finalized. As you see issues with localization in your language, please report those issues to us via Feedback Hub.
Source:
Experimental (26H1) Preview Build 28020.2134 - Windows Insider Program
Release notes for Experimental (26H1) Preview Build 28020.2134
learn.microsoft.com
Announcing new builds for 15 May 2026
Hello Windows Insiders, Today we will be expanding the rollout of the new Windows Insider Program changes to devices in the Beta Channel, which will be moved to the new Beta experience. Please see the announce
blogs.windows.com
Check Windows Updates
UUP Dump:
64-bit ISO download:
Select language for Windows 11 Insider Preview Feature Update (28020.2134) amd64
Select language for Windows 11 Insider Preview Feature Update (28020.2134) amd64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net
ARM64 ISO download:
Select language for Windows 11 Insider Preview Feature Update (28020.2134) arm64
Select language for Windows 11 Insider Preview Feature Update (28020.2134) arm64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net
UUP Dump - Download Windows Insider ISO
UUP Dump is the most practical and easy way to get ISO images of any Insider Windows 10 or Windows 11 version, as soon as Microsoft has released a new build. UUP Dump creates a download configuration file according to your choices, downloads necessary files directly from Microsoft servers, and...
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