Microsoft ShopAll Microsoft Products License Key In One Place Filters Reset all × Azure AD × Upgrade × Windows 8.1 × Windows Server MAK × Lifetime / Reusable × Lifetime / Onetime × Categories Windows (4) See more See less Product Version Windows 8.1 (2) Upgrade (3) See more See less Product EditionSelect Categories first See more See less License Term Lifetime / Onetime (4) 12 Months (1) License Type Retail (4) Platform Supported Windows (4) Users Supported - Select Users Supported -1 User (4) Devices Supported - Select Devices Supported -1 Device (4) Show (4) Cancel Filtered (4) Reset all × Azure AD × Upgrade × Windows 8.1 × Windows Server MAK × Lifetime / Reusable × Lifetime / Onetime ×