Learn how to Register, activate or Enter your 25 Digits Microsoft 365 or Microsoft Office 2021 product Key at Microsoft 365 official website www.Microsoft365.com/setup or www.office.com/setup to download, install, and reinstall your Microsoft 365 setup or Office 2021 setup.

1. Create an account or sign in

a.) Open a web browser and go to Microsoft 365 official website www.Microsoft365.com/setup or www.office.com/setup.

b.) Sign with your Microsoft account ID and password. If you don’t have one create an account by following the on-screen instructions.

2. Enter your 25 Digits Microsoft 365 Product Key

a.) Once you sign In it will prompt you to enter your 25 digits Microsoft 365 or Office 2021 product key.

b.) You can find the product key at the back of Microsoft 365 card. You need to scratch the card to find the key. If you purchase the subscription online, then you can check your order confirmation email there you can find your Microsoft 365 product key. Product key contains 25 digits alpha-numeric numbers.

c.) Hit “Next” and “Confirm” to register your Office 2021 or Microsoft 365 setup key with your Microsoft account.

3. Download, Install, Reinstall Microsoft 365 setup or Office setup 2021

Note:- If you already have older version Microsoft 365 or Microsoft office, please uninstall that first.

a.) Open a web browser and go to Microsoft 365 official website www.Microsoft365.com/setup or www.office.com/setup.

b.) Sign with your Microsoft account ID and password and then click on “Services & subscriptions”.

c.) Under products you purchase you see your active subscription of Microsoft 365 setup or Office 2021 setup.

d.) Click on “Install” and follow the on-screen instructions to download and install your Microsoft 365 setup or office setup.

4. Activate your Microsoft 365 setup or Office setup 2021

a.) Open your Microsoft office app you can open word, excel.

b.) In the right-side top corner click on the sign in option.

c.) Sign in with your Microsoft user id and password and it will automatically syn the active Microsoft office subscription.

d.) Select the updated subscription of Microsoft 365 and hit confirm.

e.) Congratulations! Your Microsoft 365 setup or office setup is activated.