Microsoft ShopAll Microsoft Products License Key In One Place Filters Reset all × Windows × Microsoft Viva × Windows 7 × Windows 8.1 × Windows Server 2012 × Windows Server 2025 × Essentials × Professional × Lifetime / Onetime × Categories Windows (2) Windows server (2) See more See less Product Version Windows 10 (6) Windows 8.1 (2) Upgrade (3) Windows 11 (4) For Enterprises (1) See more See less Product Edition Professional (2) Home Premium (1) Ultimate (1) See more See less License Term Lifetime / Reusable (1) Lifetime / Onetime (2) License Type Retail (2) Platform Supported Windows (2) Users Supported - Select Users Supported -1 User (2) Devices Supported - Select Devices Supported -1 Device (2) Show (2) Cancel Filtered (2) Reset all × Windows × Microsoft Viva × Windows 7 × Windows 8.1 × Windows Server 2012 × Windows Server 2025 × Essentials × Professional × Lifetime / Onetime × Windows 8.1 Upgrade to Windows 10 Professional 5.00 $ – 11.00 $ Buy Now → Microsoft Windows 8.1 Pro 5.00 $ Buy Now →