Windows Server 2022 Ltsc 21h2 X64 English Decem Updated Exclusive May 2026

This report covers the Windows Server 2022 LTSC (Long-Term Servicing Channel) Version 21H2 update released in December 2025 Release Summary Update ID: Release Date: December 9, 2025 20348.4529 Architecture: English (US/International) Servicing Channel:

Part 3: The December 2024 Update ("DecEM Updated") – Deep Dive

The "DecEM Updated" tag indicates that this ISO or installed system includes all patches through December 2024. The official cumulative update for December (typically released on Patch Tuesday – second Tuesday of December) is a security-only update plus a rollup of all previous non-security fixes.

Report Generated for IT Infrastructure Planning Purposes. windows server 2022 ltsc 21h2 x64 english decem updated

Updates for this version can be manually retrieved via the Microsoft Update Catalog.

Issue 3: Event ID 5719 Repeatedly Logged

Symptoms: System log filled with "No Domain Controller Available" errors. This report covers the Windows Server 2022 LTSC

Advanced Multi-Layer Security: Includes Secured-core server capabilities, utilizing TPM 2.0 and System Guard to protect hardware, firmware, and the OS from advanced threats.

The "Decem updated" ISO usually refers to the media refreshed by Microsoft to include the latest cumulative update (LCU) up to that point. This saves administrators the time of downloading and installing months of patches after the OS installation. Issue: Domain Controller Boot Loop

Part 9: Automation and Deployment Tips for the December Build

Large enterprises deploy thousands of December-updated servers. Here is how to script the process.

1. Issue: Domain Controller Boot Loop.