Windows 10 LTSC 2021 Official ISO (July Update) Direct Download｜Long-Term Support, No Bloatware, Official Image

Windows 10 Enterprise LTSC 2021 (Version 21H2, Build 19044.x) was officially released on November 16, 2021, as a Long-Term Servicing Channel (LTSC) edition. Based on Windows 10 21H2 code, it provides security and quality updates only throughout its lifecycle, with no mandatory feature upgrades, ensuring superior system stability and resource efficiency.

  • Support Lifecycle: Mainstream support until 2027-01-12; IoT Enterprise LTSC 2021 extends support to 2032-01-13 (standard Enterprise LTSC excludes extended support).
  • Component Reduction: Removed Microsoft Store, pre-installed UWP apps, and most cloud integration features, retaining only Edge browser and core management tools to eliminate ads and reduce background services.
  • Typical Use Cases: Designed for industrial control, medical imaging, financial terminals, and kiosks requiring long-term stability unaffected by UI changes, appealing to professionals/enthusiasts seeking lightweight systems.
  • Functional Equivalence: Matches Windows 10 21H2 core capabilities, supporting modern security features (Group Policy, MDM, BitLocker, WDAC), and network coexistence with Windows 11.

Important Note: LTSC is licensed through specialized industry channels. Personal users must ensure legal authorization for trial use. As the ecosystem transitions to Windows 11, third-party software compatibility with LTSC should also be monitored.

July 8, 2025 — KB5062554 / Build 19044.6093 Update Notes & Known Issues

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Patch Tuesday Highlights (July 2025)

Included Updates

  • KB5062554 (OS Build 19044.6093)
  • KB5061087 (OS Build 19045.6036, June update content)
  • KB5060533 (OS Build 19044.5965/19045.5965)

Key Security Improvements

  1. Kernel-Level Enhancements

    • Fixed multiple privilege escalation vulnerabilities in Windows kernel (CVE pending)
    • Strengthened user-mode/kernel-mode isolation
    • Improved driver verification processes

  2. Service Stack Optimization

    • Integrated latest Service Stack Update KB5063706 (19044.6088/19045.6088)
    • Enhanced update installation reliability, reducing BSOD risks
    • Optimized LCU-SSU collaboration workflows

Quality Fixes (Including June Highlights)

System Functionality Repairs

  • COM Component Activation
    • Resolved remote COM activation failures (0x8001011 error)
  • Device Registration
    • Fixed device enrollment issues in Entra ID Windows Account Manager plugin
  • Storage Optimization -彻底 cleaned unused language packs and FOD components

Peripheral Compatibility

  • USB Multi-Protocol Printers
    • Fixed scanning function failure for dual-protocol interface devices
  • Kiosk Devices
    • Resolved BSOD in forced auto-login configurations

UI Experience Enhancements

  • Start Menu
    • Fixed missing jump lists
    • Resolved post-update launch failures
  • System Information
    • Corrected version display errors in "Settings > System > About" (previously showed 2009)

EU DMA Compliance Adjustments

  • Default browsers automatically pinned to taskbar/start menu
  • Automatic association of HTTP and PDF file types

Known Issues

Noto Font Rendering Problem

  • Symptoms: Blurred CJK (Chinese/Japanese/Korean) display in Chromium-based browsers (Edge/Chrome) at 96 DPI
  • Cause: Character alignment issues at low pixel density
  • Workarounds:
    1. Set display scaling to 125% or higher
    2. Submit feedback via Google Noto Fonts repository

Update Installation Notes

  • Recommend upgrading to 21H2 via EKB KB5003791
  • Enterprise users need Configuration Manager to handle Microsoft Store app updates

Download Guide

We've consolidated all available download methods for your convenience. Choose your preferred channel based on network conditions:

  • Download Page: https://changjiu365.cn/download/win10-ltsc-2021

  • Available Sources:
    Local High-Speed Direct Links:
    Enjoy fast, stable downloads via Cloudflare R2. It is Login-Free!

    Public Cloud Mirrors:
    No additional steps required. Easily transfer to personal accounts. We provide mirrors on Google Drive, and OneDrive.

  • Important Notes:

    • Manual Updates: This system requires manual updates. Contact us via WeChat for overdue updates.
    • File Verification: Always check SHA-256 hashes provided on the download page.
    • Cost: All channels are completely free.

Reminder

  • LTSC targets enterprise scenarios with different activation methods from retail/digital licenses. Ensure legal compliance.
  • Microsoft Store or Teams require manual installation of standalone packages.
  • For future Windows 11 upgrades, prioritize Windows 11 IoT Enterprise LTSC.

For download speed issues or mirror verification problems, please leave comments or contact us via WeChat official account!