Because support has ended, buying Windows 8.1 in 2026 is generally for primary use [23]:
If you must use Windows 8.1 for legacy hardware or specific software compatibility, there are two primary versions: buy windows 8.1
: If you have a computer that originally came with Windows 8 or 8.1, the product key is often embedded in the motherboard (BIOS/UEFI) and will activate automatically upon reinstallation [31]. Key Reasons to Upgrade Instead of Buying Because support has ended, buying Windows 8
: 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. Because support has ended