Set up Mail and add contacts
Write and send email
Organize your inbox
Sweep, junk, and delete
Remove an account
If you don't want to see email from an account in the Mail app anymore, you can remove the account. This doesn’t delete the original account or messages—you’ll still be able to get to them through a browser or another mail app.
On Start, tap or click Mail.
Swipe in from the right edge of the screen, and then tap Settings.(If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Settings.)
Tap or click Accounts.
Tap or click the account you want to remove.
At the bottom, tap or click Remove account or Remove all accounts.
Removing your Microsoft account (the account you use to sign in to Windows) is a different process. This account is required to use Mail, and removing it will remove all of your accounts from Mail, Calendar, and People. To remove your Microsoft account, see How to add an account to your Microsoft account. You might instead want to stop downloading messages for your Microsoft account.
Tap or click the account you want.
Under Download new email, tap or click Manual.