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.
Activate Windows - Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
Difference between product key and activation code
A product key is a unique alphanumeric code provided during the installation of Microsoft software (such as Windows or Office). It serves as a license key that validates your ownership of the software.
Product keys for Windows - Microsoft Support
A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow. Windows 11 and Windows 10: In most
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.
Download, install, or reinstall Microsoft 365, Office 2024, or Office ...
Go to office.com/setup and sign in with an existing or new Microsoft account and then enter your product key to redeem it*. Redeeming your key is what adds your Microsoft 365 or Office license to your Microsoft account, and you only have to do this once per product key.
What's new in Office 2024 and Office LTSC 2024 - Microsoft Support
If you have a subscription through a Microsoft 365 (or Office 365) plan, that's separate from Office 2024 or Office LTSC 2024. For example, if you are already using Microsoft 365 or if your organization deployed Microsoft 365 Apps for enterprise to the users in your organization, you don't need Office 2024 or Office LTSC 2024.
Reactivating Windows after a hardware change - Microsoft Support
When you're ready to reactivate, make sure that your device is connected to the internet and then follow the steps for either a digital license or product key. If you have a digital license, run the Activation troubleshooter.
Install Project - Microsoft Support
Before installing Project the first time, sign in with an existing or new Microsoft Account and enter your product key* at microsoft365.com/setup. Redeeming your key links your account with the Project app and you only have to do this once.
Users might receive a Product Deactivated error in Microsoft 365 …
2024年12月20日 · Collect Office license diagnostic. For more information, go to Download Office Licensing Diagnostic Tool from Official Microsoft Download Center.