If you are looking out for the steps to how to change signature in Outlook, then check out the steps mentioned. To change your signature in Outlook in Windows, then launch Outlook. After that, tap to file, options, mail, and then signatures. Tap to signature to change the signature for your Outlook email. You can smoothly make the changes through the edit signature box. After completing it, tap to save and then OK. These are the steps that you have to perform to smoothly change the signature in Outlook.