Change or update email account settings in Outlook for Windows
If you have a new password, if your email provider has asked you to change settings, or if you're having problems with sending and receiving email, you can change your email account settings through Mail in the Windows Control Panel, or from Outlook.
Switch to another Outlook email profile - Microsoft Support
A Microsoft Outlook email profile is made up of email accounts, data files, and information about where your email is stored. This article assumes that you are using multiple profiles and explains how to make a profile the default and how to switch to a different profile.
Change the account used to send email messages
Change your default email account. You can change your default email account using the following steps. Select File > Account Settings > Account Settings.
Change or update your email password in Outlook for Windows
Change your password with your email provider. See the following sections for instructions on changing your email account password for several major email providers. If your email account provider isn't listed, contact your admin or the email provider's help desk.
How to change your Microsoft account name or address
You use your display name whenever you sign in to your account. You'll also see it on any Windows devices that you've signed into with your Microsoft Account, and it's the name people see when you send emails or participate in an Outlook.com group.
Change the email address or phone number for your Microsoft …
Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.
Edit an Outlook profile - Microsoft Support
Configure an Outlook profile to change account settings and data file information.
Change your password in Outlook.com - Microsoft Support
Your Outlook.com password is the same as your Microsoft account password. Go to Microsoft account security and select Password security.
Microsoft account security info & verification codes
Change the email address or phone number for your Microsoft account. Add an email address or phone number to your Microsoft account. Need more help? Troubleshooting verification code issues. Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.
Switch to new Outlook for Windows - Microsoft Support
After the installation is complete, classic Outlook will close and the new Outlook for Windows will open, where you can sign in and choose to import your accounts and settings. You can switch back to classic Outlook any time.