Windows 11 24H2 end of support arrives on October 13, 2026, according to Microsoft’s own release health page. Home and Pro edition PCs, which cover most small business laptops and desktops, will no longer get security patches, bug fixes, or technical support after that date. If your office runs Windows 11 Pro, and most do, this is worth checking before the deadline instead of after.
- Windows 11 24H2 Home and Pro editions reach end of updates on October 13, 2026.
- Unmanaged consumer devices get bumped to 25H2 automatically, but business-managed PCs usually need an administrator to push the update.
- Several bugs are already showing up in August 2026 updates to 24H2, including Teams and Outlook failing to launch on some ARM-based devices.
- An unsupported operating system with no security patches becomes a liability for compliance reviews and cyber insurance renewals.
- Checking your fleet takes minutes: Settings, then System, then About, then look at the version number.
What does “end of updates” actually mean?
Once Windows 11 24H2 passes its end-of-servicing date, Microsoft stops shipping monthly security and preview updates for it, along with fixes for known issues and general technical support. Any vulnerability found in that version after October 13, 2026 simply won’t get patched. The computer keeps running fine on the surface, and the risk stays invisible until something exploits it, which is exactly the kind of gap that surfaces during a cyber insurance renewal or a compliance audit.
Which of your computers are actually affected?
The October 13 cutoff applies specifically to the 24H2 release of Home, Pro, Pro Education, and Pro for Workstations editions. A PC already moved to version 25H2 is covered through October 13, 2027. Enterprise and Education editions run on a separate support schedule with more runway, so check your edition before assuming your whole fleet is affected the same way.
The fastest way to know where you stand is to check machines directly. Open Settings, go to System, click About, and look at the Windows specifications section for the version number. Small offices tend to mix personal laptops, older desktops, and newer purchases, so don’t assume every device runs the same version just because they’re all Windows 11.
Will the update just happen automatically?
For a PC that isn’t managed by an IT department, Microsoft pushes the 25H2 update on its own, and the user can pick when to restart or postpone it for a while. That’s fine for a single home computer, not for a dozen or a hundred business machines.
If your computers are managed through Windows Update for Business, WSUS, or a remote monitoring platform, the 25H2 rollout usually needs to be scheduled and approved by whoever manages your patching, not left to chance. Skipping that step is how a company finds out about the deadline in November, after it’s already passed.
What’s already going wrong with 24H2 updates right now?
This isn’t a purely hypothetical risk. Microsoft’s release health tracker lists active issues tied to August 2026 updates for 24H2, including Teams and Outlook failing to launch on some ARM-based Surface devices. None of these are catastrophic on their own, but they’re a reminder that staying current takes active management, not a one-time setup. We cover the monthly patching side of this in our August 2026 Patch Tuesday rundown, worth a look if your team handles updates in-house.
How does this tie into cyber insurance and compliance?
Running an operating system past its support date is a common gap that shows up when insurers or auditors dig into your actual environment instead of a checklist. We wrote about this in our post on cyber insurance requirements for SMBs in 2026, and an unpatched, unsupported OS is exactly the kind of finding that leads to a denied claim. If your business went through a similar deadline with Windows 10’s end of support last year, this is the same pattern on a shorter cycle.
What should you do this month?
Start with an inventory. Check the Windows version on every business PC, not just the ones in the main office. For any machine still on 24H2, plan the move to 25H2 with time to test line-of-business software, VPN clients, and endpoint protection agents, since a version change can occasionally surface conflicts with older drivers. If you manage updates centrally, confirm the rollout is actually scheduled rather than assumed. If you don’t have a formal patch management process, October is a reasonable time to build one, since this cycle repeats every year.
Letting a fleet of PCs quietly slide past a security update deadline is a specific, avoidable risk. It’s cheap to fix in September and expensive to explain after an incident in November. Boston Managed IT offers a free 15-minute Microsoft 365 and security review to check where your organization actually stands on patch status, update management, and the controls insurers and auditors look for. Call (617) 322-5155 or visit bostonmit.com/contact to get on the calendar.
Frequently asked questions
What is the difference between Windows 11 24H2 and 25H2?
They’re both feature updates for Windows 11, released about a year apart. 24H2 came out in fall 2024 and stops receiving updates on October 13, 2026. 25H2 came out in September 2025 and is supported on Home and Pro editions until October 13, 2027.
Do all Windows 11 24H2 devices lose support on the same day?
Home and Pro editions, including Pro Education and Pro for Workstations, reach end of updates on October 13, 2026. Enterprise and Education editions run on a different lifecycle with more time, so check your edition before assuming your whole fleet is affected the same way.
How do I check which Windows 11 version my computers are running?
Go to Settings, then System, then About. Look for “Version” under Windows specifications. If it says 24H2, that machine needs to move to 25H2 (or later) before October 13, 2026 to keep getting security patches.
What should I do if a business app breaks after updating to 25H2?
Test the update on a small group of machines first, especially any that run line-of-business software, VPN clients, or endpoint protection agents. If something breaks, you have weeks to work with your software vendor or IT provider before the deadline, rather than finding out after support ends.
— Boston Managed IT
