
Windows Server 2022 reaches end of mainstream support in 60 days
Microsoft warns IT admins that Windows Server 2022 mainstream support ends October 13, 2026, shifting to extended security updates through October 14, 2031.
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Microsoft warns IT admins that Windows Server 2022 mainstream support ends October 13, 2026, shifting to extended security updates through October 14, 2031.

Microsoft announced that Windows Server 2022 will reach the mainstream end date in October 2026, but will switch to extended support and continue receiving security updates for five more years.

Microsoft has extended Windows Server 2022 hotpatching until October 2027 for systems running Windows Server 2022 Datacenter: Azure Edition. This allows for monthly security updates without requiring a restart.

Microsoft has fixed a known issue causing June 2026 security updates to fail on Windows Server 2016 systems. The issue was resolved after reports of installation failures with error codes 0x80070002 or FILE_NOT_FOUND.

Microsoft fixed a Windows Server 2025 bug that could send some devices into BitLocker recovery after the April 2026 security update.
Microsoft tests the 15-character limit of Windows Server admins' patience
A May security update for Windows Server 2016 can break domain controller discovery when a hostname is exactly 15 characters long. Microsoft says it is investigating and offers no workaround yet.

Microsoft says a May 2026 security update can break domain controller discovery on Windows Server 2016 when hostnames are exactly 15 characters long.