Microsoft ShopAll Microsoft Products License Key In One Place Filters Reset all × Windows × Upgrade × Windows 10 × Windows 365 × Windows 7 × Windows 8.1 × Categories Microsoft 365 (1) Windows (29) See more See less Product Version Windows 10 (24) Windows 8.1 (2) Upgrade (3) Windows 7 (3) Windows 11 (7) See more See less Product Edition Enterprise E5 (1) IoT Enterprise (1) Enterprise LTSC (3) Enterprise LTSB (5) Pro for Workstations (2) Enterprise (3) Professional (10) Home Premium (1) Home (3) Ultimate (1) See more See less License Term Lifetime / Reusable (3) Lifetime / Onetime (25) 12 Months (1) License Type Retail (28) Subscription (1) MAK (1) OEM (3) Platform Supported Windows (29) Users Supported - Select Users Supported -1 User (26)100 Users (1)2 Users (2)20 User (2)25 Users (1)5 Users (3)50 Users (10) Devices Supported - Select Devices Supported -1 Device (26)100 Devices (1)2 Devices (2)20 Device (2)25 Devices (1)5 Devices (3)50 Devices (10) Show (29) Cancel Filtered (29) Reset all × Windows × Upgrade × Windows 10 × Windows 365 × Windows 7 × Windows 8.1 × Windows 11 Home to Pro Upgrade Key 5.00 $ – 440.00 $ Buy Now → Windows 10 Home to Pro Upgrade Key 5.00 $ – 11.00 $ Buy Now → Windows 8.1 Upgrade to Windows 10 Professional 5.00 $ – 11.00 $ Buy Now →