Windows 10 and Windows 11 24H2: which versions are still supported?

Why it matters

Cyber Essentials fails any device running software that no longer gets security updates. Two Windows deadlines have just passed, so many small businesses have computers that would fail without anyone noticing.

Windows 11: update to version 25H2

To check your version, open Settings, System, About. To update, go to Settings, Windows Update, and select Check for updates. Computers not managed by an IT provider usually move to 25H2 automatically, but check, because a stalled update can leave a computer unsupported.

Windows 10: only with Extended Security Updates

Windows 10 reached end of support in October 2025. It only gets security updates if it's enrolled in Microsoft's Extended Security Updates (ESU) programme, which has now been extended to October 2027.

• Consumer ESU is for computers signed in with a personal Microsoft account. It's free if you turn on Windows Backup, or costs a one-off fee. Computers managed by a business system, such as Microsoft Entra or device management, can't use it.
• Business ESU is a paid, per-device subscription that doubles in price each year.
• The computer must be on Windows 10 version 22H2 with the latest updates.

For Cyber Essentials, software must be licensed and supported, with a published end date. Tell your certification body about any Windows 10 computers on extended updates, and plan to move them to Windows 11.

What to do

1. List every work computer and its Windows version. Our free device checker does this for you.
2. Update Windows 11 computers to version 25H2.
3. Upgrade Windows 10 computers to Windows 11 if they can run it. Windows Update tells you if they can.
4. Enrol computers that can't upgrade yet in Extended Security Updates, and budget to replace them.
5. Take any computer that can't be updated out of work use.

Common questions

Is Windows 11 24H2 still supported?
Not for Home and Pro editions. Security updates ended on 13 October 2026. Enterprise and Education editions are supported until October 2027.

Can I still use Windows 10 for Cyber Essentials?
Only if the computer gets security updates through Extended Security Updates. Tell your certification body, and plan to move to Windows 11.

How long do Windows 10 Extended Security Updates last?
Until October 2027 for consumer ESU. Business ESU is available in yearly steps at a rising price.