Error code when installing avg

Once you are done with the uninstallation, please follow the article http://support.avg.com/SupportArticleView?urlname=Download-and-install-AVG-Performance to install AVG Internet Security program.

If you face any difficulties, please contact us with the screenshot http://support.avg.com/SupportArticleView?urlname=How-to-create-a-screenshot to assist you further.

Hello Bridget,

I am sorry to hear that. I would love to assist you. Please follow the steps in this article http://support.avg.com/SupportArticleView?urlname=How-to-uninstall-AVG to run AVG remover tool. Then download and run AVG Clear tool: https://share.avg.com/steam/PSP/AVG2017/AVG_Clear.exe . This tool will help with removing antivirus component of AVG 2017 and its traces.
Open tool
User Account control - click "Yes"
Windows safe mode - click "No" (we cannot recommend using the tool in safe mode because there is a problem with compatibility)
Choose installed version (AVG Free, AVG Internet Security)
Click "Uninstall"
Click "Restart computer".

I keep getting an error code Oxe001f921 

Hello Bridget,

I am sorry to hear that. I would love to assist you. Please follow the steps in this article http://support.avg.com/SupportArticleView?urlname=How-to-uninstall-AVG to run AVG remover tool. Then download and run AVG Clear tool: https://share.avg.com/steam/PSP/AVG2017/AVG_Clear.exe . This tool will help with removing antivirus component of AVG 2017 and its traces.
Open tool
User Account control - click "Yes"
Windows safe mode - click "No" (we cannot recommend using the tool in safe mode because there is a problem with compatibility)
Choose installed version (AVG Free, AVG Internet Security)
Click "Uninstall"
Click "Restart computer".

Bridget, If applicable… 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