LTSC Archives

Winsage

August 17, 2026

Windows Server 2022 reaches end of mainstream support in 60 days

Microsoft has announced that the mainstream end date for Windows Server 2022 is set for October 13, 2026, after which it will enter extended support until October 14, 2031. Windows Server 2022 became generally available in September 2021 and is part of the Long-Term Servicing Channel (LTSC) offering, which guarantees a decade of support. Microsoft recommends upgrading to Windows Server 2025, which will be generally available in November 2024, and will reach its end of support on November 13, 2029, with five years of extended support until November 14, 2034. A free 180-day trial of Windows Server 2025 is available. Additionally, hotpatching for Windows Server 2022 will be extended until October 2027 for Datacenter: Azure Edition systems. The free Windows 10 Extended Security Updates (ESU) program has been extended by an additional year, and Windows 11 23H2 Enterprise and Education editions will end updates on November 10, 2026, with a recommendation to upgrade to Windows 11 25H2.

Winsage

August 16, 2026

Microsoft releases new Defender update for Windows 11, 10, Server ISO installations

Microsoft released its August 2026 Patch Tuesday updates, including the latest Defender package for ISO installations. The updates are aimed at combating malware threats and are issued approximately every three months for Windows installation images (WIM and VHD) and ISOs. The latest Windows 11 update is available through the Media Creation Tool (MCT). The security definitions were delivered through security intelligence update version 1.455.50.0, applicable to various platforms including Windows 11, Windows 10 ESU, Windows Server 2022, and others. The update includes enhancements to the anti-malware client, engine, and signature versions, with platform version 4.18.26070.9, engine version 1.1.26070.7, and security intelligence version 1.455.50.0. The previous security intelligence update was version 1.447.236.0, which introduced detections for various malware types. The most recent intelligence update is version 1.457.181.0.

Winsage

August 15, 2026

Windows 11 24H2, Windows Server 2022, Windows 10 Ent. LTSB 2016 get 60-day cut off warnings

Microsoft has issued a 60-day notice regarding the end-of-life dates for several products, following a previous 90-day warning. Mainstream support for Windows Server 2022 will end on October 13, 2026, affecting all editions. Users of Windows 11 version 24H2 Home and Pro, as well as Windows 10 Enterprise LTSB 2016, will stop receiving updates. Microsoft recommends upgrading to Windows Server 2025, with an extended support phase lasting until October 14, 2031, for those unable to upgrade immediately. Windows 11 version 24H2 users must upgrade to version 25H2 to continue receiving updates, while Enterprise and Education variants will have a grace period until October 2027. Organizations using Windows 10 Enterprise LTSB 2016 should transition to Windows 11 Enterprise LTSC 2024, with Extended Security Updates available for purchase for those who remain on the older system. A 180-day evaluation build of Windows Server 2025 can be downloaded for compatibility testing.

Winsage

August 6, 2026

Windows 10 LTSC 2021 has five months before security updates cost extra

Microsoft has announced that support for Windows 10 Enterprise LTSC 2021 will end on January 12, 2027, coinciding with the release of a final security update. Organizations can enroll in the Extended Security Updates (ESU) program to maintain security updates beyond this date, which will cost per device in Year 1, with prices doubling each subsequent year until the program ends on January 8, 2030. ESU sales will start on September 1, 2026, and licenses are cumulative. The ESU program does not cover Windows 10 IoT Enterprise LTSC, which is supported until January 13, 2032. Organizations using Microsoft’s cloud-based update services can receive a 25 percent discount on the Year 1 price. As of July, 16.9 percent of monitored devices were still running Windows 10, with migration to Windows 11 stalling due to compatibility issues and hardware requirements.

Winsage

July 23, 2026

Microsoft making a new feature mandatory requirement for Windows KMS activation

Microsoft has introduced enhancements to its Windows operating system security, including an update to Entra ID authentication with default passkeys and AI-enhanced security updates. A key advancement is the KMS Hardware-Secured initiative, which uses Trusted Platform Module (TPM)-based attestation to ensure KMS hosts operate on trusted hardware for Windows volume activation. This aims to combat risks from counterfeit KMS servers. Under the new model, KMS hosts will confirm their hardware identity using TPM before activating Windows devices. Starting in August 2026, Windows Server 2025 will provide readiness messaging for KMS host compliance with new security requirements. TPM attestation will be mandatory for KMS Hardware-Secured activation with the upcoming Windows Server 2028 LTSC release. Organizations are advised to prepare for this transition.

Winsage

July 22, 2026

Redmond’s reaper cometh: October 2026 set to bury a graveyard of Microsoft products

October 2026 will see the end of support for several Microsoft products, including Office LTSC 2021, which requires organizations to transition to LTSC 2024 or Microsoft 365 for continued support. Windows Server 2022 will exit mainstream support on October 13, 2026, while Windows 11 24H2 Home and Pro editions will also reach their end of life on the same date. The enterprise and education versions of Windows 11 23H2 will be supported until November 10, 2026. Publisher 2021 will be discontinued without a successor. Additionally, Entra ID Sign-In risk policies will be phased out on October 1, 2026, necessitating a transition to Conditional Access to maintain user and sign-in risk protection. SQL Server 2017 is scheduled for retirement in October 2027.

Winsage

July 20, 2026

The Windows 10 hangover is becoming a security problem

Windows 11 is currently operating on 78.8% of Windows devices, while Windows 10 holds a 16.9% share. Microsoft ceased support for Windows 10 on October 14, 2025, making it vulnerable to security threats. Eligible Windows 10 devices can receive Extended Security Updates (ESU) until October 12, 2027, through a paid program, with free ESU available for users in the European Economic Area until October 14, 2026. Approximately 21.4% of devices in small and medium-sized businesses and 16.6% in large organizations still run Windows 10, often due to budget constraints. Devices in industries like healthcare and manufacturing are particularly slow to adopt Windows 11. Windows 10 devices face nearly three times the number of active vulnerabilities compared to Windows 11, with 66.6% rated as high or critical. About 2.8% of Windows 10 systems do not meet the hardware requirements for Windows 11. A total of 18.7% of Windows devices are running unsupported operating systems, with 22.2% on versions that will reach end of support within six months, totaling 40.9% of systems that are unsupported or soon to be. The consumer ESU program will expire on October 12, 2027, after which many devices will transition to unsupported status.

Winsage

July 19, 2026

Microsoft confirms WSUS service degradation impacting all versions of Windows

A significant issue has emerged with the Windows Server Update Service (WSUS), affecting all versions of Windows client and server. Microsoft acknowledged the service degradation that began before July 14, coinciding with the latest Patch Tuesday. This degradation has caused prolonged synchronization times and occasional timeouts during sync operations on WSUS servers, attributed to a buildup of publishing metadata. Microsoft is working on a resolution to improve performance and restore synchronization times. The affected platforms include various versions of Windows 11, Windows 10, and Windows Server from 2012 to 2025. An update is expected to be released shortly to address the issue.

Winsage

July 18, 2026

Windows Server 2022 reach end of mainstream support in 90 days

Windows Server 2022 will end its mainstream support on October 13, 2026, transitioning to an extended support phase that will last until October 14, 2031, during which security updates will be provided at no additional cost. Windows Server 2022 was released in September 2021 and is part of the Long-Term Servicing Channel (LTSC) with a decade of support. Microsoft recommends upgrading to Windows Server 2025, which became generally available in November 2024 and will have mainstream support until November 13, 2029, and extended support until November 14, 2034. A 180-day trial for Windows Server 2025 is available through the Microsoft Evaluation Center. Additionally, hotpatching for Windows Server 2022 will be extended until October 2027 for Datacenter: Azure Edition systems, and the free Windows 10 Extended Security Updates program has been extended by one year. Windows 10 Enterprise LTSB 2016 and Windows 11 24H2 will stop receiving updates three months after their end of support.

Winsage

July 16, 2026

Windows 10 just got a big security update. Here’s who gets it

Microsoft released update KB5099539 for Windows 10, enhancing security and addressing vulnerabilities. This update is part of a broader initiative for Windows 10 22H2, Windows 10 Enterprise LTSC 2021, and Windows 10 IoT Enterprise LTSC 2021. It will be automatically installed on eligible systems, resulting in build number 19045.7548. The update resolves issues in File Explorer related to OneDrive shortcuts and erroneous error messages during file deletions, as well as fixes for keyboard shortcut malfunctions. Windows 10 PCs will receive updated Secure Boot certificates, which are essential for system integrity, with Microsoft actively rolling these out. Secure Boot certificates for most Windows devices are set to expire starting in June 2026. Users must be enrolled in the Extended Security Updates (ESU) program to benefit from the KB5099539 update, which provides continued support until October 12, 2027.