Your Outlook.com inbox comes with 15 GB of free online storage on OneDrive for your files and photos. Once your files are in your OneDrive, you can get to them from the OneDrive website or by using a OneDrive app, available from the app store affiliated with your mobile device.
Sign in to OneDrive
The Microsoft account you use to sign in to Outlook.com automatically signs you in to OneDrive as well. To access your OneDrive:
Click the app launcher button at the top of your inbox.
On your OneDrive site, you can create folders and drag files and photos into them. You can also share files and folders by inviting specific people or by getting a link. You can paste the link anywhere, like in an email, or post it directly on Facebook, Twitter, or LinkedIn.
OneDrive works with Office
You can create, edit, and share Office docs with other people right from OneDrive, even if you don’t have Office installed. Learn more.
To get back to your Outlook.com account, just click the app launcher button > Mail (if your account has already migrated to the new experience) or Outlook.com (if you've not yet migrated).