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

Een Windows-productcode is een code van 25 tekens waarmee u Windows kunt activeren. De code ziet er zo uit: PRODUCTCODE: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Zoek uw productcode voor …

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

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. …

Each product is uniquely identified by its product code, which is a GUID. This article provides code samples that show how to programmatically check for the presence of a Windows Installer-based …

Sometimes when you run the Activation troubleshooter or try to activate, the error code and message will change. If the error code has changed, look up the new code below and follow the recommended …

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 …

The product code must be changed if any of the following are true for the update: Coexisting installations of both original and updated products on the same system must be possible.

If you just bought or got a Microsoft 365 subscription, the first thing to do is redeem the product key to activate Microsoft 365 and get access to your apps and features.

Find the software, and then select Product key/Install. Note: If you're having problems installing an app from the Microsoft Store, see Fix problems with apps from Microsoft Store. If you're looking for …