Yes, but Windows 10 is fully supported natively; you likely don’t need it there unless you want an even older Start Menu style. Windows 11 is the primary use case.
: Genuine keys provide access to updates that ensure compatibility with new Windows 11 builds, which frequently break third-party UI tweaks. Recommendation startallback serial key
For the price of a coffee, a genuine license gives you permanent access to: Yes, but Windows 10 is fully supported natively;
: Some users bypass the need for a key by resetting the 100-day trial via the Windows Registry: Registry Editor Navigate to: startallback serial key
Volume licenses are available for 2 or more PCs at a discounted rate per seat.