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 record of purchased …

Learn how to find your product key for Office 2010 or locate a lost Microsoft Office 2010 product key.

If you bought a Microsoft 365 product key card, you might need to carefully scratch off a silver foil coating on the back of your product key card to reveal your product key.

Learn how to find your Office for Mac 2011 product key for download or purchased software.

You can find the product key in one of the following locations: Sticker on the CD case or other packaging. Certificate of Authenticity. Confirmation email message received from an online purchase.

Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead.

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 …

Get your product key. If you used a product key to get to Windows 11, then you’ll need that key again after the hardware change. To find out how to locate your key, see Find your Windows product key. …