https://learn.microsoft.com/en-us/lifecycle/announcements/windows-server-2012-r2-end-of-support
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With October 2023 right around the corner, it's time for organizations running Windows Server 2012 or Windows Server 2012 R2 to start planning their upgrade. Microsoft will end mainstream support for these server operating systems on October 10, 2023. That means no more security updates or technical support for Windows Server 2012 after that date.
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