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Office 365 - How to sign in Office 365 through a web browser?

Please use your email address to sign in to Office 365. You can access to Office 365 in any of the following ways:

  • From O365.ust.hk
    1. Sign in to Office 365 from http://o365.ust.hk using your email address
      (make sure that it is a secured connection with URL starting with https://adfs.connect.ust.hk/...) :
    2. If you have enrolled for two-factor authentication, you will need to use your mobile device to approve the access.
    3. In case you have problem signing in due to the 2FA requirement, please get a Bypass Code for 2FA.
    4. If you want to add a bookmark with your browser, make sure you edit your bookmark with the address http://o365.ust.hk
    5. In case you have problem to Sign in, please select New Session under the File menu if you are using Internet Explorer or Firefox. You may also use New incognito window for Chrome, New Private Window for Safari or Firefox or InPrivate Browsing for Internet Explorer.
  • From myPortal 
    1. After sign on to myPortal, select @Connect from the top right corner
    2. Sign in to Office 365 with your email address and password
    3. If you have enrolled for two-factor authentication, you will need to use your mobile device to approve the access.

If your browser (e.g. Internet Explorer) already connected to other Microsoft web mail service such as outlook.com, Microsoft live account, etc., you will need to use New session under the File menu before you can sign on to Office 365. For Firefox or Chrome, select New Private Window or New incognito window.

If you have any issues with signing in to Office 365, please send email to cchelp@ust.hk or visit our service desk at room 2021 (lift 2).

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