Mainstream end of support for Windows 10 21H2 LTSC is 2027-01-12. But the process to switch is not particularly easy nor is it free. You need a Windows 10 LTSC license.
For instance, Windows 10 IoT Enterprise LTSC 2021 reaches its extended end date on January 13, 2032, while Windows 10 2016 LTSB will reach its extended end date on October 13, 2026. "The ESU ...
If you are looking for an older version of Windows, check out the official list here. Lastly, these keys should only be used for temporary activation. Ultimately, you will have to buy a genuine ...
Note that Windows 11 LTSC is available for Enterprise users, so you cannot use a personal Microsoft account to set it up. We used a few techniques to bypass the work/school account requirement in ...