Activate Windows - Microsoft Support
Depending on how you got your copy of Windows 11, you'll need either a digital license or a 25-character product key to activate it. Without one of these, you won't be able to activate your device. A digital license (called a digital entitlement in Windows 11) is a method of activation in Windows 11 that doesn't require you to enter a product key.
Get help with Windows activation errors - Microsoft Support
If you encounter error code 0x803F7001, it indicates that a valid Windows 10 license could not be found to activate Windows on your device. To activate Windows: Select Start > Settings > Update & Security > Activation .
Find your Windows product key - Microsoft Support
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. A digital license is a method of activation in Windows 10 and Windows 11 that doesn't require you to enter a product key.
Product activation for Windows – online & support telephone …
Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. There are three methods to which you can activate your product: Online via the internet, by telephone using our automated systems, and by a live support advocate.
Using the Windows Activation troubleshooter - Microsoft Support
To activate Windows using your digital license, in the troubleshooter, select Activate Windows, and then select Activate.
Activate Office - Microsoft Support
To use Microsoft 365 on your new device, you can activate Microsoft 365 as a 1-month trial of Microsoft 365 Family. You can also buy Microsoft 365 or a non-subscription version of Office, add Microsoft 365 to an existing Microsoft 365 subscription, or enter a …
Reactivating Windows after a hardware change - Microsoft Support
You’ll need to first add your Microsoft account and link your account to the digital license on your device. After linking your Microsoft account, run the Activation troubleshooter to reactivate Windows 11.
Why can't I activate Windows? - Microsoft Support
Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. When you get a message that says Windows can't be activated, there are several possible reasons why.
Manage devices used with your Microsoft account
Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.
Where to enter your Office product key - Microsoft Support
If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription.