A product key is a unique code that is used to identify a particular software product. It is usually a 25-character code that is printed on a sticker on the software packaging or included in the email confirmation when you purchase the software online.
A license key, on the other hand, is a code that is used to activate a software product. It is usually obtained from the software publisher after you have entered the product key.
The main difference between a product key and a license key is that a product key identifies the software product, while a license key activates the software product.
In some cases, a product key may also be used to activate a software product. However, this is not always the case. For example, Microsoft Windows 10 uses a digital license instead of a product key.
Here is a table that summarizes the key differences between product keys and license keys:
Feature / Product key / License key
Purpose / Identify the software product / Activate the software product
Length / Usually 25 characters / Varies depending on the software publisher
Where to find / Printed on the software packaging or included in the email confirmation / Obtained from the software publisher after you have entered the product key
