Activate Windows - Microsoft Support
网页Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
Find your Windows product key - Microsoft Support
网页Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.
Product keys for Windows - Microsoft Support
网页Windows 11 and Windows 10: In most cases, Windows 11 and Windows 10 activates automatically using a digital license and doesn’t require you to enter a product key. However, if a product key is required, it can usually be found in the confirmation email you received after purchasing Windows, or in the box Windows came in. Microsoft doesn't ...
Upgrade to Windows 10 Pro - Microsoft Support
网页Upgrade to Windows 10 Pro. If you're running Windows 10 Home, select Get Windows 10 Pro to upgrade your device. Was this information helpful? Learn how to upgrade Windows 10 Home to Windows 10 Pro to access more advanced security and networking features.
Get help with Windows activation errors - Microsoft Support
网页For example, a product key for the Enterprise edition of Windows 10 can't be used to activate Windows 10 Home or Windows 10 Core editions. Enter a product key that matches the version and edition of Windows installed on your device or buy a new copy of Windows from the Microsoft Store.
Find and install your Microsoft downloads from Microsoft Store
网页To find your Windows product key, see Find your Windows product key. If you have a digital gift card that's good for a game or app, see Redeem a gift card or code to your Microsoft account . To buy an app or game, visit Microsoft Store online , on Windows and Xbox.
Upgrade Windows Home to Windows Pro - Microsoft Support
网页Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.
Upgrade to Windows 10: FAQ - Microsoft Support
网页If you’re installing Windows 10 for the first time, you’ll need to enter a valid Windows 10 product key or buy a full version of Windows 10 during setup for this tool to work. If you’ve previously installed Windows 10 on your device, you should have a digital license and Windows 10 will automatically activate without entering a product key.
About Genuine Windows - Microsoft Support
网页To fix the issue, you can properly activate Windows by reentering your original product key. For other issues, you may need to buy a genuine version of Windows. 1 License = 1 PC.
Reactivating Windows after a hardware change - Microsoft Support
网页If you don't have a product key or digital license, you can purchase a Windows 10 digital license after installation finishes. Follow these steps to make a purchase: Select the Start button, then select Settings > Update & Security > Activation .