Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

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 keep a …

If your device is managed by an organization, check with your IT department to retrieve the recovery key. If you can’t find the BitLocker recovery key and are unable to undo any changes …

Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.

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. This article will help you …

To activate Windows, you'll need either a digital license or a product key. To find out which you need, see "What activation method do I use, product key or digital license?"

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

In summary, a product key is used during installation, while an activation code is used to activate the software afterwards. Both are essential for ensuring a legitimate and functional software …

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 …