If you just want to delete it on one specific email----you can highlight it and then press the delete key on your keyboard, and it's erased, on that one email.
If you want to remove it completely from all emails---then remove it from your settings.
Mail page>>options>>mail options>>Signatures (left side)>>click the "enable" link.
On the signature page----highlight the entire signature and then press the delete key on your keyboard, and it will be erased. THEN, be sure to click "Save".
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Verified answer
If you just want to delete it on one specific email----you can highlight it and then press the delete key on your keyboard, and it's erased, on that one email.
If you want to remove it completely from all emails---then remove it from your settings.
Mail page>>options>>mail options>>Signatures (left side)>>click the "enable" link.
On the signature page----highlight the entire signature and then press the delete key on your keyboard, and it will be erased. THEN, be sure to click "Save".
Go to options (upper right corner)
From drop down select mail options
Select accounts
select add or edit an account
Select the email address you wish to change (its usually already highlighted)
Click edit and on the bottom deselect add my signature to all mail
Click save
(If it wont save your changes try doing this in ie)