Windows 10 version 21H2 (also known as the November 2021 Update) was released on 16 November 2021. It followed version 21H1 and was one of the later feature updates before Microsoft moved fully to the annual release model that ended with 22H2.

Windows 10 21H2 – November 2021

Windows 10 21H2 is a relatively small feature update. Most of the visible changes were refinements rather than major new features. It focused on stability, security improvements, and a few quality-of-life updates for both home and business users.

What’s new in Windows 10 21H2

Notable changes in this release include:

• Improved Windows Hello for Business cloud trust
• WPA3 H2E support for better Wi-Fi security
• GPU compute support in Windows Subsystem for Linux (WSL)
• Some performance and reliability improvements for Microsoft Defender
• Minor Start menu and search refinements carried forward from earlier updates

Many of the larger interface changes people associate with Windows 10 (new Start menu layout, separate Search and Cortana, light theme, etc.) were already present in earlier versions such as 20H2 and 21H1. 21H2 itself was mainly a servicing and security-focused update.

Windows 10 Screenshots

Windows 10 Editions

Windows 10 21H2 was available in the usual main editions:

• Home – for everyday personal use
• Pro – for professionals and small businesses (BitLocker, Hyper-V, domain join, Remote Desktop, etc.)
• Enterprise – for organisations that need advanced management and security features (requires volume licensing)
• Education – for schools and academic institutions

There is no “Ultimate” edition of Windows 10 (unlike Windows 7). Most home users are fine with Home or Pro. Enterprise and Education are mainly relevant when you already have the corresponding volume or academic licence.

How to get Windows 10 21H2

You can still obtain 21H2 in these ways:

1. Download the ISO directly (links below)
2. Use the Windows 10 Media Creation Tool
3. Use the Windows 10 Update Assistant (if Microsoft still offers the older build)

Because 21H2 is no longer the current version, the simplest and most reliable method is usually a direct ISO download.

Download Windows 10 21H2 ISO

Download Windows 10 (21H2) 64-bit ISO (≈ 5.4 GB)

Download Windows 10 (21H2) 32-bit ISO (≈ 3.9 GB)

If you prefer the latest supported Windows 10 release instead, go to the Windows 10 ISO page (22H2 is the final feature update).

How to install from ISO

1. Download the 64-bit or 32-bit ISO that matches your PC.
2. Create a bootable USB with Rufus or the official Media Creation Tool.
3. Boot from the USB and follow the Windows Setup screens (choose Upgrade or Custom/Clean install).
4. After installation, run Windows Update to get the latest cumulative updates available for 21H2.

You can also mount the ISO in File Explorer and run setup.exe for an in-place upgrade.

Notes

• Windows 10 reached end of standard support on 14 October 2025. 21H2 stopped receiving regular updates earlier than 22H2.
• A genuine product key is still required for permanent activation.
• For most users still on Windows 10, 22H2 is the better choice because it received updates for longer.

More details and the full list of Windows 10 versions are available on the main Windows 10 download page.