Managing personal Outlook.com account settings, security, and privacy
Hi!
If you changed it on your computer, you don't need to change the password again on your phone; just sync again using the new password.
iPhone
- Open Outlook for mobile > Click on the user photo icon > Look for the gear icon (Settings) > Accounts > Select your account > Remove Account.
- Open your iPhone's Settings > Look for the Accounts, Accounts & Sync, or similar option > Find your Hotmail or Microsoft account > Remove the account.
https://support.apple.com/en-us/guide/iphone/iph44d1ae58a/ios
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- Restart your phone and then sign in to Outlook again.
Android
- Open Outlook on your mobile device > Tap your profile picture icon > Look for the gear icon (Settings) > Accounts > Select your account > Remove Account.
- In your phone's settings, search for Accounts, Accounts & Sync, or similar > Select your account > Remove.
- Restart your phone and then sign in to Outlook again.