Your first day: signing in to Microsoft 365
Updated 9 November 2026 · How-to
For new team members. How to sign in for the first time, set up multi-factor authentication and get Outlook, Teams and OneDrive ready.
Welcome aboard. Before your first day, your manager will have asked us to set up your account, so everything should be ready for you. This article walks you through the first sign-in. It takes about fifteen minutes. Have your phone with you, because you will need it to set up multi-factor authentication.
Your sign-in details
Your manager will give you your work email address and a temporary password. The first time you sign in, you will be asked to choose your own password. Pick a long passphrase that you do not use anywhere else; our article Strong passwords without the headache explains how.
Setting up multi-factor authentication
Straight after you set your password, Microsoft asks you to add a second sign-in method. Install Microsoft Authenticator from your phone's app store, then follow the prompts on screen to scan the QR code and approve a test notification. From now on, when you sign in on a new device you will approve the sign-in on your phone. More detail is in Turning on multi-factor authentication.
Your computer
If we have prepared a computer for you, sign in to it with your work email and new password. The main apps, security software and settings are already installed, and where we have linked your Desktop and Documents folders to OneDrive, your files are backed up from the start. If you are using a computer that someone else used before, tell us and we will make sure their files and accounts are gone.
Outlook, Teams and OneDrive
Open Outlook and Teams; they should sign you in automatically. You may already see shared mailboxes or Teams channels for your role. If something you were told to expect is missing, let us know. Our article Setting up Outlook on a computer or phone covers adding email to your phone.
A few ground rules
Save work files in OneDrive, SharePoint or Teams rather than only on the computer. Lock your screen when you step away. Never share your password or a sign-in code with anyone, including us. And if something looks odd, such as an unexpected sign-in prompt or an email asking for payment, ask before you click.
Who to call
For anything technical, email hello@bitnode.tech or call 855-248-2637. Our article How to raise a support request explains what to include.
Was this helpful?