Microsoft sets 2027 deadline tied to Windows Update certificate rotation
Microsoft announced that Windows Update certificates will expire on May 17 and June 19, 2027, and devices running unsupported Windows versions at that point will lose access to update services entirely. The company has already pushed replacement certificates to supported systems, but it listed specific security updates that must be installed on various Windows 10, 11 and Server versions before the deadlines to maintain update access.</br>Microsoft urged IT administrators to inventory devices on outdated or unsupported Windows versions now and ensure monthly updates are deployed across their fleets ahead of the rotation.
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Losing Windows Update access would cut off security patches entirely, leaving affected machines increasingly vulnerable to exploits over time. Because certificate rotations are routine infrastructure maintenance rather than new features, many organizations could overlook the deadline until devices silently stop receiving updates, making Microsoft's advance guidance a practical compliance checklist for IT teams managing mixed-version fleets.
- Windows Update certificates expire May 17 and June 19, 2027, cutting off unsupported devices.
- Specific security updates must be installed by version to retain update access past the deadline.
- Microsoft urges admins to audit and update systems now rather than wait until the rotation.
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Published there as: “Microsoft: Outdated Windows devices will stop receiving security updates”
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