Error code 0xc0070643

I keep tryingt to reinstall my AVG and keep getting this error code

Hello Kevin,
We apologize for the inconvenience.
This issue is caused due to the presence of the third party security software or the traces of old AVG files. We suggest you to completely remove the traces of other security program and then try to install AVG. You can use this link for the steps to remove old AVG files from your computer. http://avgclick.me/UninstallAVGAV
If you still have any issue, feel free to contact us.
Thank you