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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 signing in, then you are already signed in with another Office 365 account and you have to sign out first. After that, you can click forget this account and sign back in:
Sign in with your OST account:
Provide additional information to complete your registration. The easiest way is to have an SMS sent to your mobile phone:
- Registration is complete.
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