• Office for home    Some Office for home products come with a product key. If yours did, before installing Office for the first time, sign in with an existing or new Microsoft Account and enter your product key at office.com/setup. Redeeming your key is what links your account with Office so you only have to do this once.

Go to office official website and if you're not already signed in, select Sign in.

Sign in with the account you associated with this version of Office. This account can be a Microsoft account, or work or school account.

After signing in, follow the steps that match the type of account you signed in with.