- Windows 11 21H2 is no longer a supported operating system starting October 10, 2023.
- This means that the operating system will no longer receive updates or support of any kind.
- If you’re still using this version, it’s recommended to upgrade to version 22H2 (or 23H2).
UPDATED 10/11/2023: Windows 11 21H2 (original release) officially reached the end of support on October 10, 2023. This applies to some of the editions of the operating system, including Windows 11 Home, Pro, Pro Education, and Pro for Workstations.
The original version of Windows 11 was released on October 5, 2021. The rollout of this operating system marked one of the major overhauls in many years, with the introduction of a new Taskbar with a centered alignment, a redesigned Start menu without Live Tiles, and the introduction of a new design language that brought new visuals across the desktop and apps.
Windows 11 started with an initial “22000.194” build number. The first cumulative update arrived on October 12 as build 22000.258, which only introduced some fixes. Since the original release (until the time of this writing), Microsoft has made available 64 cumulative updates (including preview releases) with many fixes, improvements, changes, and various small features. The last update was build 22000.2538 (KB5031358), which introduced a number of fixes and improvements, including a memory leak fix.
You will still be able to run version 21H2, but Microsoft will no longer offer support for this release after October 10. Computers running the original version will no longer receive security and quality updates. Also, the company says that customers will be directed to the latest version of the operating system page if they try to contact support after the end of the support date.
If you have a computer with the original release of Windows 11, the system will eventually upgrade automatically to the next supported version, which in this case will be version 22H2. However, you can always upgrade manually.
To upgrade manually, open Settings > Windows Update, click the “Check for updates” button and click the “Download and install” button (if applicable). Or you can perform an in-place upgrade or clean installation of the new version of Windows.
After the installation, you’ll need to restart to complete the installation, which could take some time, depending on the hardware configuration.
Update September 1, 2023: Microsoft has announced that the last cumulative update for version 21H2 will be released on October 10, 2023. After this rollout, Windows 11 21H2 will reach the end of support, and the company will no longer offer any more security or any type of maintenance updates. If you want to maintain your computer supported, it’s recommended to upgrade to version 22H2 or 23H2 (when available).
Update October 11, 2023: Added additional information about the last update for version 21H2 and changed the language to reflect that the operating system is no longer supported.