Get Rid of SignTURE

Jesse, Bring up the AVG User Interface -> Options -> Advance Settings -> Email Protection -> Email Scanner -> Certification & disable.
AVG Guru

HOW DO i GET RID OF THE SIGNATURE:

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7687 / Virus Database: 4613/12574 - Release Date: 07/07/16

Hello Jesse,
We regret the inconvenience caused to you. We would request  you to send the screenshot of your popup message which has been shown  frequently on your desktop so that we can assist you further. Please click on the following http://support.avg.com/SupportArticleView?urlname=How-to-create-a-screenshot  link to send the screenshot. Please free to contact us back. Thank you.

Jesse, My previous posting should provide you with solution otherwise… For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru

Jesse, Bring up the AVG User Interface -> Options -> Advance Settings -> Email Protection -> Email Scanner -> Certification & disable.
AVG Guru