You can still use a Windows 7, 8, or 8.1 license to activate Windows 10. I'm unsure if this still works with Windows 11, but judging by how the upgrade process

You can still use a Windows 7, 8, or 8.1 license to activate Windows 10. I'm unsure if this still works with Windows 11, but judging by how the upgrade process works, I would guess so.