Windows 11 version 24H2 on Home and Pro editions receives its last security update this week, with Microsoft’s October 13, 2026 Patch Tuesday release. After that, PCs still running that version stop getting the monthly fixes that close newly discovered holes in the operating system. Microsoft’s recommended move is Windows 11 version 26H2.
The cutoff is narrow in scope, and the difference matters for anyone deciding whether to act. Windows 11 as a product is not going away, and neither are Windows 10 or the newer annual releases; one yearly build of Windows 11, on two consumer editions, is aging out of its servicing window.
The 24-month servicing clock behind Patch Tuesday
Windows 11 ships a new annual version each autumn, and each one carries its own servicing clock. Microsoft’s lifecycle page for Windows 11 Home and Pro, last updated September 29, 2026, lists version 24H2 as starting servicing on October 1, 2024 and ending it on October 14, 2026 at 6:59:59 AM UTC. Expressed in Pacific Time, that boundary falls on the evening of October 13, which is why the October Patch Tuesday release is the last one to include 24H2 Home and Pro.
Two different lifecycle ideas get mixed up in coverage of dates like this, so the vocabulary is worth fixing. End of support applies to a product, such as Windows 10, and means the whole operating system stops receiving fixes. End of servicing applies to a single version of a product that continues on, and means only that build is dropped, with a newer one already available. Microsoft’s Windows lifecycle FAQ sets out how the annual-version model works.
Which editions and versions are covered, and which are not
The affected group is specific: Windows 11 version 24H2, Home and Pro editions. BleepingComputer’s Sergiu Gatlan reported on October 12, 2026 that these editions stop receiving updates “this week,” in a report on the Windows 11 servicing calendar. A PC on version 25H2, or on 26H2 once it arrives, is on a build whose clock is still running, and the lifecycle table lists 25H2 servicing through October 13, 2027.
Enterprise and Education customers sit on a different schedule. The same report says 24H2 on those editions has mainstream support until October 2027, and Microsoft’s Enterprise and Education lifecycle page carries those longer dates. Administrators managing mixed fleets therefore cannot assume a single deadline: a Pro laptop and an Enterprise desktop that both report version 24H2 are on different clocks.
Version 23H2 has its own dates. Home and Pro editions of 23H2 already lost support in November 2025, according to the report. For the Enterprise, Education and IoT Enterprise editions, the report quotes Microsoft’s notice directly: “The November 2026 Windows security update will be the last update available for these editions.” That is a month away, and it is a separate event from the one this week.
Moving to 26H2 through Windows Update
Microsoft’s stated path is to update eligible devices to a supported version of Windows 11, and the report names version 26H2 as the target. It arrived in September 2026 as an enablement package, a small update that switches on features already staged on the PC rather than reinstalling the system. Machines set to “Get the latest updates as soon as they’re available” are in a phased rollout and may be offered it automatically.
Anyone who does not want to wait can go to Settings, then Windows Update, and select “Check for updates.” If the device is ready, an option labelled “Download and install Windows 11, version 26H2” appears. Microsoft’s Windows message center is where the company posts notices about these transitions, and the version number shown under Settings, System, About confirms which build a PC is on before and after.
The length of the new runway needs a careful reading. The BleepingComputer report describes 26H2 as supported until October 2029, which is the figure in the brief that prompted this article. The Home and Pro lifecycle table, though, lists 26H2 servicing as starting September 29, 2026 and ending October 10, 2028, so a consumer should plan around the lifecycle page for their edition and treat the 2029 date as the report’s characterisation.
What an unpatched 24H2 PC faces after this week
The consequence is plain and also gradual. After the cutoff, PCs on 24H2 Home and Pro stop receiving the monthly security updates that carry protections from the latest threats, as the report puts it. The machine keeps booting and running apps, and nothing visibly breaks on October 14.
The exposure builds month by month instead. Each later Patch Tuesday will fix flaws that remain open on any 24H2 system, and attackers can study those fixes to target machines that never received them. Antivirus software and browser updates continue separately, but they do not replace operating system patches. For an affected home PC, the practical answer is to run the update to 26H2 this week rather than at the next convenient moment.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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