Windows 10 LTSC 2021 Official ISO (July Update) Direct Download
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.
Previews
Things to Know
This is not an official ISO image released by Microsoft. Instead, it is a repackaged ISO image based on the official ISO provided by Microsoft, with the latest KB patches integrated. Its advantage is that there is no need to manually install updates after installing the system, very convenient for batch deployment; all procedures follow Microsoft's offline patching guidelines.
The base package we used for integrating updates (Microsoft's official ISO image): Click to Download Windows 10 LTSC 2021 (Build.19044.1288) ISO
For KB5065429 Changelog: September 9, 2025—KB5065429 (OS Builds 19044.6332 and 19045.6332)
Download Guide
We've consolidated all available download methods for your convenience. Choose your preferred channel based on network conditions:
Available Sources:
Local High-Speed Direct Links:
Enjoy fast, stable downloads via Cloudflare R2. Just Click and Download!
Public Cloud Mirrors:
No additional steps required. Easily transfer to personal accounts. We provide mirrors on Google Drive, and OneDrive.Important Notes:
- File Verification: Always check SHA-256 hashes provided on the download page.
- Cost: All channels are completely free.
Download Page:
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.
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