Left-click the Start button at the bottom left and type Control Panel in the search and click on Control Panel or Right-click the Start button at the bottom left, and click Run or Press Windows Key + R together on the keyboard to bring up the Run prompt and in the Run box type Control and click OK.
In the Control Panel window, make sure view is set to Large icons at the top right-hand corner.
In the list of applications, click on Mail (Microsoft Outlook 2016) or Mail (32-bit) whichever is available to you based on the Windows and Outlook version.
In the Mail setup wizard, click on Show Profiles.
Click on Add.
In the New Profile box, give a Name of your choice to the Outlook profile. For example – Office 365 and click
Enter your Name, Email address of the Office 365 account, Password of the Office 365 mailbox and click Next.
If prompted to enter the password again, enter the password and check mark Remember my credentials. If you get the sign-in page for Office 365 Autodiscover, then make sure the Office 365 email is correct and click Enter your Office 365 password and click Sign-in.
If you get the prompt to ‘Use this account anywhere on this device’, then check mark the option ‘Allow my organization to manage my device’ and click If you don’t want to, then you can also click on This app only. This step with register your device with Office 365 and apply any company policy to the device if you have created any.
Once you complete these steps and add the profile, make sure to choose the option ‘Always use this profile’ and select the name of the newly create profile and click Apply & OK.