Microsoft has announced that devices running outdated versions of Windows will lose access to security updates after the company rotates its Windows Update certificates in May and June 2027. To continue receiving updates, administrators and users must upgrade to a supported Windows version before these certificates expire. Microsoft emphasized that unsupported devices will be unable to access Windows Update services and will not receive any updates following the certificate rotation.
The company provided specific guidance for different Windows versions. Supported versions only need a recent security update installed: the September 2025 update or later for Windows 11 24H2 and Windows Server 2025, and the July 2026 update or later for Windows 10 and other supported versions. Windows 11 25H2 and later need no action, while unsupported versions must be upgraded entirely. The certificates expire on May 17 and June 19, 2027. Microsoft recommended that IT administrators identify all devices running older Windows versions, deploy monthly updates to supported devices, and create upgrade plans for unsupported systems before the 2027 deadline. Devices using Windows Server Update Services for updates are exempt from this requirement.
Source: Read the full story at BleepingComputer
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