Error code 0xc0070643

Hello Zach,
I understand how something like this can really try your patience.
Could you please let us know the name of the AVG product you are trying to install in your pc? also let us know whether you are trying to install AVG first time in your pc or you have already installed any other AVG product in your pc? so that we are more happy to assist you better. Also provide us the screenshot of the error code and error message http://avgclick.me/getscreenshot .
Please feel free to contact us for any further assistance. Thank you.

i keep getting the error code 0xc0070643. New computer. windows 10? help!

Hello Zach,
I apologize for the inconvenience caused.
To get your issue fixed, I request you to run AVG remover tool in your pc and then install AVG Antivirus free offline installation to get your issue fixed.
To run AVG remover tool for AVG Antivirus please follow the below steps :
Please click on the below link to download remover tool
http://aa-download.avg.com/filedir/util/AVG_Remover.exe
Accept the license agreement and then choose AVG Internet Security and remove it.
NOTE: Once the AVG Remover Tool has done with its process. Please go to the drive where you installed this tool and look for a folder named as "AVG Remover" and I request you to delete it manually.