Configuring preferences and options in Outlook.com
Hi,
We apologize for the late response. I understand that you are unable to save an image as your signature. For better understanding of the issue, we would need a screenshot from you.
Kindly provide the above needed information on the private message that I have started. To view the private message, log in first to the Microsoft Community, go to this thread and click the "You have a private reply to this message" link above your post.
We are looking forward to hearing from you.
Thank you.