Go to www.office.com and choose My account. If you’re prompted to, sign in with the email address and password you used to set up Office. If you can’t remember which email address you used, contact support using one of the links below.
If you’re installing for first time, you might not have an account page yet. You’ll set that up as a part of installing Office.
What’s on the My Account page?
You can use your My Account page to install Office. Sign in to your My Account page and choose Install. If you need help, see Download and install Office 365 Home, Personal, or University on your PC or Download and install Office 2016 for Mac.
If you have an Office 365 subscription, on your My Account page you can also:
share your subscription (Office 365 Home only)
manage your account
access services like Skype and OneDrive
get help and support