Installing avg.. error

Deleted the antivirus, and willing to try one last time. 
Can you help me so i do not get the error?

I am getting really frustrated with this antivirus. error code 0xC0070643 while instaling… i get as far as restarting my laptop and then it loads almost till the end and then poof error code… i dont have any other antivirus. And now my laptop is not allowing me to delete this antivirus because it shows its still in process… process of what!!! 

Really unsatisfied customer.

Deleted the antivirus, and willing to try one last time. 
Can you help me so i do not get the error?

and the same issue again! error code the one i mentioned before…

Sorry to know that you are getting the error code again.
In this case, we have sent you an email with further instructions to be followed to get our additional support.
Please check for the email on spam or junk folders if it is not present in the inbox.

Great, please download and install it and if any issues please do let us know.
Thank you.