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Using your default web browser, open the Office 365 login page: https://portal.office.com
Info title Important If you see the Office portal below without logging in, then you are already logged in with another Office 365 account and you have to log out first. After that, you can click Forget this account and log back in:
Sign in with your OST account:
InProvide orderadditional forinformation the registration to becomplete completed, you must provide additional informationyour registration. The easiest way is to have an SMS sent to your mobile phone:
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