Will My Windows 8 Key Work with 10?
Contents Yes It Works. Starting with the November Update, Windows 10 (Version 1511) Can Be Activated Using Some Windows 7, Windows 8, and Windows 8.1 Product...
Yes it works. Starting with the November update, Windows 10 (Version 1511) can be activated using some Windows 7, Windows 8, and Windows 8.1 product keys. During the free upgrade, you can use a valid Windows 7, Windows 8, or Windows 8.1 product key to activate Windows 10 (Version 1511 or higher).
Can I use my Windows 8 Key on another computer?
1 Answer. According to Microsoft you can uninstall the license key on the first computer, this frees the license up in Microsoft’s servers, and then install it on the second machine.
Can I activate Windows 10 with a different key?
To activate Windows 10, you need a digital license or a product key. If you’re ready to activate, select Open Activation in Settings. Click Change product key to enter a Windows 10 product key. If Windows 10 was previously activated on your device, your copy of Windows 10 should be activated automatically.