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.
The LTSC edition of Windows adopts a lean, more stable approach. Windows 11 LTSC is now available with the third-version update, aka 24H2. However, it still maintains the simplistic design ...
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 ...