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Windows Server 2025 26100.33296

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26100.33158β†’26100.33296SecurityBug fix
πŸ“… August 12, 2026πŸ—‚ Operating SystemsπŸ“¦ Windows Server 2025 β†—πŸ“œ Full changelog β†—
✦ Editor's summary

Windows Server 2025 Build 26100.33296 is the August 2026 cumulative security update for Microsoft's current Long-Term Servicing Channel (LTSC) server platform. The update delivers the latest Windows security protections together with cumulative quality and reliability improvements. Organizations running Windows Server 2025 should prioritize deployment after standard compatibility testing. Microsoft lists Windows Server 2025 as the current LTSC release.

⚠ Security impact
  • Includes the August 2026 Microsoft security updates for Windows Server 2025.
  • Addresses security vulnerabilities affecting Windows components as part of Microsoft's monthly security servicing.
  • Includes cumulative security and quality fixes from previous Windows Server 2025 updates.
  • Deployment is recommended to maintain protection against known Windows vulnerabilities.

What's new

Windows Server 2025 Build 26100.33296 is the August 2026 cumulative security update for Windows Server 2025.

What's new
  • Includes the latest Microsoft security fixes released as part of the August 2026 security update cycle.
  • Provides cumulative quality and reliability improvements for Windows Server 2025.
  • Includes previously released fixes because Windows Server cumulative updates are cumulative.
  • Includes servicing and operating system reliability improvements.
  • Provides additional security hardening across Windows operating system components.
Recommendation

Organizations running Windows Server 2025 should deploy Build 26100.33296 after standard compatibility and application testing. Timely deployment is recommended because the release contains Microsoft's August 2026 security fixes and cumulative quality improvements.

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