Windows 11 24H2 and the end of support for key Microsoft versions

If you use Windows daily, it's crucial to know when support for different versions will end , as your security, stability, and productivity depend on it. Microsoft recently updated its official lifecycle schedule, and among all the changes, one of the most talked-about is the end of support for Windows 11 24H2, scheduled for October 2026 , along with the final discontinuation of Windows 11 SE and other products widely used in businesses and educational institutions.

Throughout 2026, we'll see several editions of Windows 11, Office, .NET, and other key Microsoft products reach their end of life with updates . This means that if you don't plan your migration in advance, you could be left with systems that will still function, but will be increasingly vulnerable and without technical support. Let's take a closer look at what's changing, the exact dates, and what you should do to avoid any surprises.

End of support for Windows 11 24H2: key date in October 2026

Microsoft has set a very specific date: October 4, 2026, as the end of support for Windows 11 version 24H2 . This edition was released on October 1, 2024, as one of the biggest updates to Windows 11, with numerous performance, security, and feature improvements. By then, 24H2 will have been in circulation for almost two years and will officially enter the "end of service" phase.

In practice, this means that, starting October 4, 2026, computers still running Windows 11 24H2 will no longer receive security updates , bug fixes, or stability improvements. The system will continue to boot and be usable, but it will be frozen on that version and will become more vulnerable to malware , exploits, and targeted attacks with each passing month .

Microsoft is clearly betting on a model where users must always stay on the latest version of Windows 11 to maintain support. Just as happened previously with Windows 11 23H2, which lost support in November 2025, the idea is to shorten the lifecycle of each version and force a more consistent update schedule in homes, businesses, and schools.

The company explains that the transition from Windows 11 24H2 to the next major update, identified as Windows 11 25H2 , will be relatively smooth. This new version will be released as an "enablement package" on the same technological foundation, so the update will be more like installing a cumulative patch than a complete operating system reinstallation, thus reducing downtime and potential issues.

For those still using older versions, Windows Update is already forcing upgrades to newer versions of Windows 11 when an edition reaches its end of service. Microsoft justifies this policy on security grounds: if your computer remains on an outdated version, the system itself will eventually download and install the newest compatible version, provided the device is suitable.

Status of Windows 11 22H2 and 23H2 in the lifecycle

Within the same support timeline, Microsoft has confirmed that all editions of Windows 11 version 22H2 reached end of service on October 14, 2025. From that date forward, no 22H2 SKUs (Home, Pro, Education, etc.) will receive monthly updates or critical patches.

When a build like 22H2 reaches its end of support, Windows Update automatically initiates a feature upgrade to a later version of Windows 11 on consumer PCs and unmanaged enterprise devices (i.e., those not controlled by corporate policies). The user can choose when to restart, but the version upgrade will ultimately occur to maintain compatibility.

Meanwhile, Windows 11 version 23H2 also has its own end-of-life date . For the Enterprise, Education, and IoT Enterprise editions, Microsoft has announced that support will end on November 10, 2026 , a year later than for the consumer editions. This gives organizations some leeway to plan more complex migrations or test critical applications before upgrading to a later version.

The overall philosophy is clear: reduce version fragmentation and keep the majority of users on one or two recent builds . This way, Microsoft simplifies its internal testing, concentrates support efforts, and, in theory, improves ecosystem security by having fewer possible combinations of system and patches.

If you receive notifications on your PC warning that your version of Windows has reached its end of service, the company itself recommends using the Windows 11 Setup Assistant to upgrade to the latest supported version . This tool guides the process and helps minimize errors during the transition.

Goodbye to Windows 11 SE: the definitive end of the education edition

One of the most striking events on the 2026 calendar is the end of support for Windows 11 SE in October of that year . This edition was introduced in 2021 with a very specific goal: to compete with ChromeOS in the K-8 educational environment (elementary and middle school in the United States) with a simplified, secure system optimized for low-cost computers.

Windows 11 SE was designed as a stripped-down, more controlled version of Windows 11 , intended for classrooms managed by IT administrators. Only pre-approved applications could run, including some traditional Win32 applications, but always with explicit authorization. The goal was to drastically limit the installation of unwanted software and provide a safer, more predictable environment for students and teachers.

To support this strategy, Microsoft collaborated with manufacturers like Dell and HP to launch affordable laptops with Windows 11 SE pre-installed, in addition to introducing its own Surface Laptop SE, a particularly inexpensive device for educational institutions. On paper, the proposal aimed to correct past mistakes of attempts like "Windows 10 in S mode," which also failed to gain traction.

However, the market reality has been different. Although Microsoft emphasized in 2022 that Windows 11 SE was a key component of its Windows strategy , the product failed to generate the expected interest. In contrast, Chromebooks have remained the dominant option in many school systems, both for their ease of administration and for their smoother performance on very modest hardware.

The underlying problem is that, under the hood, Windows 11 SE still relied on the complete Windows 11 platform . This meant that, on computers with only 4GB of RAM and entry-level processors, the experience wasn't as smooth as promised. The system could become somewhat sluggish compared to purely cloud-based alternatives, and that worked against it.

In this context, Microsoft has announced that Windows 11 version 24H2 will be the last version compatible with Windows 11 SE . This means the education edition will not receive the upcoming 25H2 version or any new feature improvements. The official lifecycle documents specify that “support for Windows 11 SE, including software updates, technical support, and security patches, will end in October 2026.”

Educational institutions and users who still have devices running Windows 11 SE should start thinking about migrating to other editions of Windows 11 , such as Pro Education or standard Education, to continue receiving critical patches. The devices will continue to function after 2026, but will remain unprotected against new vulnerabilities and will not have access to official support.

Other Microsoft products that will reach their end of support in 2026

The end of support for Windows 11 24H2 and Windows 11 SE is part of a much broader package of changes to Microsoft's product lifecycle by 2026. The tech giant has detailed an extensive list that includes everything from server software and development tools to its traditional office suite.

In terms of productivity, one of the most relevant points is the October 13, 2026, date for the end of support for Office 2021. This applies to both the standard version and the Office LTSC 2021 edition for Windows and macOS. Office LTSC 2021 for Mac shares the same expiration date, meaning all these versions will have a five-year lifespan from their release in October 2021.

Unlike Windows 11, where upgrades to newer versions are typically free for valid licenses, there is no free upgrade path for Office 2021. When the end-of-support date arrives, the applications will still launch and be usable, but security patches, bug fixes, and technical support will no longer be available. Microsoft recommends upgrading to Office 2024 or a Microsoft 365 subscription to continue receiving maintenance and updates.

In addition to Office, essential components for developers and system administrators will also be affected . In 2026, Microsoft will stop releasing updates for .NET 8 (LTS), .NET 9, and PowerShell 7.4 (LTS) , with the end-of-support date set for around November. This forces development teams to plan the migration of their projects to later versions of .NET and PowerShell to avoid being left on unpatched platforms.

Within the server environment, the end of extended support (ESU) for Windows Server 2012 and Windows Server 2012 R2 has also been set for October 2026. After years of extensions and extended security updates, these versions will be definitively discontinued, forcing organizations to upgrade their infrastructure to more modern editions of Windows Server or to cloud-based alternatives.

Official calendar: products being retired or ending support in 2026

Microsoft's official product lifecycle documentation centrally compiles all products that will be retired or reach end of support in 2026. Once a product enters this phase, all security updates, feature enhancements, and any form of assisted support, whether free or paid, cease.

In the section for products under the so-called " modern directive ", the list includes, among others, the following milestones with their technical support end dates:

• Dynamics 365 Business Central on-premises (modern policy), 2024 release 2, version 25.x, with end of support on April 4, 2026.
• .NET 9, whose end of support is scheduled for May 12, 2026.
• Microsoft Configuration Manager, version 2409, with end of support on June 6, 2026.
• Dynamics 365 Business Central on-premises (modern directive), version 1 release of 2025, version 26.x, and Windows 11 Home and Pro, version 24H2, both with end of support on October 13, 2026.
• Azure IoT Edge, version 1.5 (LTS), .NET 8 (LTS), PowerShell 7.4 (LTS), Windows 11 Enterprise and Education, version 23H2, and Windows 11 IoT Enterprise, version 23H2, all with end of support on November 10, 2026.

In parallel, Microsoft distinguishes another group of “products reaching end of support” under the fixed lifecycle policy , detailing specific versions that will no longer receive updates. Additionally, it lists “products transitioning to extended support,” a stage that includes only free security patches, non-security updates under contract, and paid support.

During extended support, Microsoft no longer accepts requests for new features or design changes . The product is maintained only with the bare minimum necessary to avoid discovering serious vulnerabilities, which in practice is a warning that it's advisable to plan your upgrade to the next stable version within a reasonable timeframe.

The company also outlines several additional changes to Azure in these documents , including modifications to APIs, SDKs, tools, and specific service features. To stay informed about these changes, users are directed to the "Azure Updates" pages, where continuous announcements about new versions, feature retirements, and expiration dates are posted.

End of support for Windows 10, 8.1 and 7: the broader context

To understand the developments surrounding Windows 11, it's helpful to look at the broader context of Microsoft's operating system. The company has been announcing in advance that Windows 10 will reach its end of support on October 14, 2025. Furthermore, there have been cases such as a lawsuit against Microsoft for ending support . From that day forward, there will no longer be security updates or technical support for any of its home or business editions.

Before that, Windows 8.1 had already reached its end of life on January 10, 2023. Since then, no further security patches or improvements have been released, although those who still have it installed can continue using it at their own risk. Microsoft's message is clear: these systems are out of support and pose a significant cybersecurity risk.

Windows 7 followed the same path , with support ending on January 14, 2020. For years it was one of the most popular operating systems in history, but even with extended support programs, the company decided to end its maintenance. Without Windows Update, these computers are especially vulnerable to modern attacks, and their use is discouraged in internet-connected environments.

Throughout these transitions, Microsoft provides detailed information on dedicated support pages, explaining what it means for a version of Windows to be discontinued , the security implications, and available upgrade options. These pages also provide links to download official migration tools and to check hardware compatibility with newer versions.

In the case of Windows 11, the list of editions affected by each end-of-support date includes Home, Pro, Pro Education, Pro for Workstations, and SE versions . When any of these editions reaches its end of service, the recommendation is to upgrade to the latest active build to remain protected.

Practical recommendations: why and how to update to recent versions

This whole timeline might sound overwhelming, but the message is quite simple: don't wait until your version of Windows or Office reaches its end of life to think about upgrading . Waiting until the last minute usually leads to rushing, mistakes, and, in businesses, work disruptions.

In the case of Windows 11, Microsoft highlights several reasons to stay updated: constant security improvements, new productivity and collaboration tools, performance and interface optimizations, and clearer long-term support . Each major new version incorporates changes that, beyond aesthetics, affect how data is protected and compatibility with recent software and hardware.

On a technical level, it's also important to understand concepts like Secure Boot and TPM , which are part of the minimum requirements for Windows 11. In specific situations, security alerts may appear, such as BitLocker requesting a recovery key . Secure Boot helps ensure that only trusted, signed software loads during computer startup, while the Trusted Platform Module (TPM) chip provides encryption and secure key storage .

If you're unsure whether your computer can keep up with these updates, you can check system compatibility using Microsoft's official tools . The company offers utilities that check the processor, memory, storage, firmware, TPM, and other components to determine if your device is compatible with Windows 11 and future builds.

As for the update process itself, you have several options supported by Microsoft: let Windows Update handle the automatic update, use the media creation tool for a more controlled installation, or perform a clean installation from scratch . Each method has its advantages depending on whether you want to keep your data and applications or prefer a completely clean environment.

Planning when to perform the update is also important. For personal computers, it's usually best to take advantage of times when you don't urgently need your PC , as the process can take anywhere from a few minutes to over an hour, depending on the hardware and the amount of data. In business and educational environments, it's recommended to establish a phased deployment schedule, testing first with a small group before rolling out the new version to everyone.

In any case, it's worth remembering that if your computer doesn't meet the Windows 11 requirements , it's not the end of the world, but it does indicate that your hardware is becoming outdated. You can continue using Windows 10 until its end of support in 2025, or consider upgrading your device to one that's compatible with future models.

This entire timeline of changes—from the end of support for Windows 11 24H2 and Windows 11 SE in October 2026 to the retirement of Office 2021, .NET 8 and 9, PowerShell 7.4, and older versions of Windows—paints a clear roadmap: Microsoft wants to reduce reliance on outdated software and keep its ecosystem moving forward. Keeping these dates in mind, reviewing which versions you're using, and planning your migration in advance is the best way to continue working with your devices securely and smoothly.

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Isaac

Passionate writer about the world of bytes and technology in general. I love sharing my knowledge through writing, and that's what I'll do on this blog, show you all the most interesting things about gadgets, software, hardware, tech trends, and more. My goal is to help you navigate the digital world in a simple and entertaining way.