1.Go to https://setup.office.com or https://redeem.microsoft.com/
2.Login/Register to your Microsoft account
3.Enter the product key
4.Select Region and Language, then click Next
5.Download and Install the setup from here https://account.microsoft.com/services/
6.After installation open any app (eg: Word)
7.Log in with your MS account
8.The app will automatically detect your license and your MS Office will be activated
If you run into any problems or have any questions, please reach to us through our contact us page or our support email "support@premiumcdkeys.com". Our support team is available 24/7 at your service.