Great! So you just bought this cool new Office 365 subscription and you have no idea what to do or how to do it.
It’s really easy.
Register a new Microsoft Account
Login to Microsoft’s Office Site
Click on the Sign In button
Note you should use the “We have a new sign-in experience” option – “Try it now“
If you don’t have an existing account – create a new one using your current email address
Note: Write your password down and keep it in a safe place
Add your purchased Office 365 product key to your new account
If you now click on Install office, you can add a product key to your account. You will find this product key inside the box you purchased.
When you install Office, use the email address and password you used to create the account.
When you need to renew your licence in a year’s time, you can also do so from the account page.