You can use your favorite social network to register or link an existing account:
Or use your email address to register without a social network:
Sign in with these social networks:
Or enter your username and password
Forgot your password?
Yes, please link my existing account with for quick, secure access.
No, I would like to create a new account with my profile information.
Curious about the Office Web Apps? Afraid the sign-in process will be like finger nails on a chalk board? How about this: If you use Hotmail, Messenger, or even Xbox LIVE, you already have a what you need to start up the Office Web Apps. If you don’t, let me show you how fast and painless it is to sign-in and start. Stopwatches ready? Ready, set, watch:
To learn more about what these free online companions to Word, Excel, PowerPoint and OneNote, read about the Office Web Apps, at Office.com. Ready to sign in? Go to home.live.com.
PS: You don't have to use a Hotmail or Live email account. You can simply use the a Windows Live ID as a sign-in with your own email address.
That is pretty fast. And once sign-up is done, it's lickety-split.