On 13 October 2026,
Windows 11 version 24H2 Home and Pro editions will reach end of updates, meaning devices running these editions will no longer receive monthly security and non-security preview updates containing protections from the latest security threats
. For Kent SMEs running this version on desktop and laptop computers, the deadline is just days away—and the security implications are immediate.
This end-of-support deadline arrives during an already challenging month for IT teams. As we’ve covered in recent posts, Windows Server 2022 reaches end of mainstream support on the same date, and October’s Patch Tuesday delivered an unusually quiet release with just one vulnerability fixed. Kent businesses must act this week to ensure desktop security continuity.
Why Windows 11 Version 24H2 End of Support Matters for Kent SMEs
When a Windows version reaches end of support, Microsoft stops releasing security patches entirely. This creates three immediate risks for SME operations:
- Unpatched vulnerabilities: Any new security flaws discovered after 13 October 2026 will never be fixed for version 24H2 Home and Pro, leaving systems exposed to exploit.
- Compliance gaps: Many insurance policies, Cyber Essentials certification requirements, and client contracts require systems to receive current security updates.
- Support limitations: Third-party software vendors often end support for unsupported Windows versions, reducing compatibility over time.
Enterprise and Education editions of Windows 11 version 24H2 remain supported until October 12, 2027
, highlighting Microsoft’s expectation that business users should either maintain active licensing or migrate to current versions.
Which Kent SME Devices Are Affected
The 13 October 2026 deadline applies specifically to:
- Desktop PCs running Windows 11 Home edition version 24H2
- Laptops running Windows 11 Pro edition version 24H2
- Workstations purchased or deployed between approximately October 2024 and mid-2025
To check your Windows version, press Windows key + R, type winver, and press Enter. The version number appears in the dialogue box. If it shows “Version 24H2” and your edition is Home or Pro, you’re affected.
Devices running Windows 11 versions 25H2, 26H2, or Enterprise/Education editions of 24H2 are not affected by this October deadline. Similarly, businesses already running
Windows 10 Enterprise LTSC 2021, which reaches end of support on 12 January 2027
, face a different timeline.
What Kent SMEs Must Do Before 13 October 2026
Option 1: Upgrade to Windows 11 Version 25H2 or Later
For devices meeting hardware requirements, upgrading to a supported Windows 11 version is the most straightforward path. Microsoft typically releases new feature updates twice yearly, and version 25H2 or 26H2 will receive security updates well into 2027.
Before upgrading:
- Back up critical data and verify backup integrity
- Test the upgrade on a single device to identify application compatibility issues
- Schedule upgrades during low-activity periods to minimise disruption
- Document your current system configuration for rollback if needed
Option 2: Migrate to Windows 11 Enterprise or Education Editions
SMEs with Microsoft 365 Business Premium or Enterprise subscriptions can upgrade Home and Pro devices to Enterprise edition, which extends support for version 24H2 until October 2027. This option suits businesses wanting to maintain current hardware configurations whilst gaining additional time for planning.
Option 3: Replace Unsupported Devices
Older devices that cannot support newer Windows 11 versions may require replacement. With
the UK Government’s 2026 SME Digital Adoption Taskforce identifying capability, cost and awareness as important barriers to businesses adopting productivity-enhancing digital technology
, hardware refresh cycles offer an opportunity to address both security and productivity requirements simultaneously.
The Broader Context: October 2026 Microsoft Lifecycle Changes
The Windows 11 version 24H2 deadline forms part of a concentrated series of Microsoft end-of-support dates in mid-October 2026:
- Windows Server 2012 R2 Extended Security Updates end on 13 October
- Windows Server 2022 mainstream support ends on 13 October
- Windows 10 Enterprise LTSB 2016 and Windows 10 IoT Enterprise LTSB 2016 will reach the end of extended support on 13 October 2026
IT teams managing these concurrent transitions should prioritise based on exposure: internet-facing systems and devices handling sensitive data require immediate attention, whilst isolated or purpose-built systems may operate under controlled exceptions with documented risk acceptance.
Security Considerations During the Transition
Even after upgrading or migrating, Kent SMEs should verify that security fundamentals remain in place. Recent research shows significant skills gaps: 57% of UK businesses lack confidence in basic cyber security skills, and 49% of UK SMEs suffered cyber incidents in the past year.
Post-upgrade checks should include:
- Confirming Windows Update is enabled and functioning
- Verifying antivirus definitions are current
- Testing backup and recovery processes on the new version
- Reviewing user permissions and access controls
- Documenting the new baseline configuration
Get Expert Support for Windows 11 Lifecycle Management
Meridian Micro Limited helps Kent and South East businesses navigate Microsoft lifecycle transitions without disrupting operations. Our team can audit your current Windows estate, recommend the most cost-effective upgrade path, and manage the technical implementation from testing through deployment.
With the 13 October 2026 deadline approaching rapidly, don’t leave desktop security to chance. Call our Saltwood office on 01303 883111 to discuss your Windows 11 version 24H2 upgrade options and ensure your business maintains continuous security protection beyond the end-of-support date.