Redeeming the product key is an imperative phase of the Microsoft Office setup product and you have to solely do it once. After this, you can effortlessly reinstall or renew your Office subscription besides having to do much. When you buy a Microsoft workplace product, you are furnished with an activation code on your registered e mail address. You want to replica the 25-digits alphanumeric code from there and do as described:
Go to Official Website of Microsoft
Log in the use of your Microsoft account via Office.com/myaccount
Enter the Office product key when asked
Your Office product is now linked to Microsoft.