Security News > 2021 > September > Microsoft: Windows 10 2004 reaches end of service in December

Microsoft has reminded customers today that Windows 10 2004 and Windows Server 2004 will reach the end of servicing on December 14, 2021.
Microsoft advises customers still running Windows 10 2004 to install the May 2021 Update that will upgrade their devices to Windows 10, version 21H1, which will reach the end of service next year, on December 13, for all editions.
Redmond started auto-updating Windows 10 2004 devices to Windows 10 21H1 on June 5 and announced they have begun auto-upgrading a larger number of Windows 10 devices nearing the end of life to Windows 10 21H1 on June 22.
With Windows 10 2004 reaching its end of life in three months, more devices running this Windows 10 version will automatically be upgraded to the latest version.
Windows 10 21H1 is currently available to all users with devices running Windows 10, version 20H2 and Windows 10, version 2004, who manually seek to Check for updates using Windows Update.
If you don't yet want to upgrade to Windows 10 21H1, you can defer the feature update using the 'Select when Preview Builds and Feature Updates are received' group policy you can find under Computer Configuration > Administrative Templates > Windows Components > Windows Update > Windows Update for Business.
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