: You may find old "boxed" copies or remaining digital licenses at third-party retailers like Electronic First [10]. Be cautious when buying from unknown secondary markets to avoid counterfeit or invalid keys.
If you must use Windows 8.1 for legacy hardware or specific software compatibility, there are two primary versions: buy windows 8.1
Because support has ended, buying Windows 8.1 in 2026 is generally for primary use [23]: : You may find old "boxed" copies or