Windows Server · 2025 · Release · Security update (Patch Tuesday)
Windows Server 2025 (26100.33158)
- Release
- KB5099536 — Microsoft's article, opens in a new tab
- amd64
Windows Server 2025: Current LTSC release
AI summary
Windows Server 2025 build 26100.33158 delivers targeted performance and reliability improvements, security hardening, and fixes for authentication, networking, and virtualization issues.
Generated from the package's release notes and forum coverage. Verify against Microsoft's release-health page before acting on it.
Microsoft's known issues — KB5099536
- Issue Known issue After installing KB5070881 or later updates, Windows Server Update Services (WSUS) does not display synchronization error details within its error reporting. This functionality is temporarily removed to address the Remote Code Execution Vulnerability, CVE-2025-59287 .
Known issues — reported on the forum
No problems reported on the forum for this build yet. Threads that name 26100.33158 or KB5099536 and describe a fault appear here automatically.
In the news
- Coverage KB5099536: Hold MegaRAID CacheCade Hosts Pending Boot Tests
- Coverage CVE-2026-50424: KB5099536 Stops Windows Server 2025 DC DoS
- Coverage KB5101650 July 2026: Install Windows 11 Builds 26200.8875 and 26100.8875
- Coverage Windows 10: 21% of PCs Remain Unsupported After October 2025
- Coverage Windows 11 Builds 26100.8942/26200.8942 Add Voice Isolation
- Coverage Windows Server 2025 Adds KMS TPM Readiness Checks in August 2026
- Coverage Windows Server 2025 Adds KMS Readiness for TPM Attestation
- Coverage Windows Server 2025 Gets KMS TPM Readiness Checks in August 2026
Discussed on the forum
No member thread names 26100.33158 yet.