Sharing the latest Windows as a service updates. For immediate assistance, please reach out to @MicrosoftHelps.
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Today, we are announcing the availability of the Windows 11 2025 Update, also referred to as Windows 11, version 25H2. 🎉
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Windows Update retweeted
Security updates for September are now available: msft.it/6018SZEg0.
Alongside this month's release, we're expanding machine-readable Vulnerability Exploitability eXchange (VEX) coverage to all Microsoft-assigned CVEs, providing customers with more consistent, machine-readable security information to help understand exposure and prioritize risk.
Learn more about this latest milestone in our transparency efforts: microsoft.com/en-us/msrc/blo…
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The September 2026 Windows security updates are now available for Windows 11.
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ALT A blue banner image that says "Windows 11 September 2026 security updates"
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IMPORTANT: Secure Boot certificates used by most Windows devices started to expire on June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. Learn more by visiting the Secure Boot playbook.
techcommunity.microsoft.com/…
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Resources:
· Learn about the different types of monthly updates: msft.it/6017eRKoX
· Find resources, tools, and news about known issues and safeguards: msft.it/6016eRKon
· Have an issue? File feedback to our engineers: msft.it/6018eRKok
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Windows Update retweeted
Announcing the release of Windows 11, version 26H2 into Release Preview. See aka.ms/ReleasePreview26H2Ann… for more information about 26H2.
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Windows Update retweeted
Security updates for August 2026 are now available. Details are here: msft.it/6018SZEg0
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Watch our short monthly release notes video for a summary of this month’s Windows 11 update.
aka.ms/Windows11/ReleaseNote…
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IMPORTANT: Secure Boot certificates used by most Windows devices are started to expire on June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. Learn more by visiting the Secure Boot playbook.
techcommunity.microsoft.com/…
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Resources:
· Learn about the different types of monthly updates: msft.it/6017eRKoX
· Find resources, tools, and news about known issues and safeguards: msft.it/6016eRKon
· Have an issue? File feedback to our engineers: msft.it/6018eRKok
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Highlights for Windows 11, version 25H2:
➡️ The update includes security fixes that are documented in the Security Update Guide. msrc.microsoft.com/update-gu…
➡️ This update expands high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Devices receive the new certificates only after demonstrating sufficient successful update signals, maintaining a controlled and phased rollout.
➡️ This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.
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This security update includes improvements that were a part of KB5101684 (released July 28, 2026)
nitter.net/WindowsUpdate/status/2…
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The August 2026 Windows security updates are now available for Windows 11
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Windows 11 release notes:
· Version 26H1 (KB5121000): support.microsoft.com/help/5…
· Version 24H2 & 25H2 (KB5121003): support.microsoft.com/help/5…
· Version 23H2 (KB5120240): support.microsoft.com/help/5…
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