Can't install. Error code 0xc0070643

Simon, Please refrain from carrying out multiple topic postings on the same subject! You won't obtain an answer to your query any faster!. Please refrain from carrying out multiple postings on the same subject! You won't obtain an answer to your query any faster!. Other posting (https://support.avg.com/answers?id=906b0000000bos2AAA).
Download & use the McAfee total removal tool (http://us.mcafee.com/apps/supporttools/mcpr/mcpr.asp). Also with Win 10 Windows Defender is classified as an AntiVirus prog… & will be disabled during the AVG install process.
AVG Guru

It's a brand new laptop running win 10.
 
Mcafee is preinstalled, but hasn't been configured yet. 

Simon, Please refrain from carrying out multiple topic postings on the same subject! You won't obtain an answer to your query any faster!. Please refrain from carrying out multiple postings on the same subject! You won't obtain an answer to your query any faster!. Other posting (https://support.avg.com/answers?id=906b0000000bos2AAA).
Download & use the McAfee total removal tool (http://us.mcafee.com/apps/supporttools/mcpr/mcpr.asp). Also with Win 10 Windows Defender is classified as an AntiVirus prog… & will be disabled during the AVG install process.
AVG Guru

Simon,
We apologize for the inconvenience caused.
We would request you to run AVG remover tool to completely remove AVG and then re install it.  
Please  click this link http://download.avg.com/filedir/util/AVG_Remover.exe to download and "Run" the AVG Remover tool.
1. Please select the AVG products which are shown in the remover tool window and then start removal process.
2. After the remover tool process is successfully finished, restart your computer.
3. After the restart,  manually delete the AVG Remover folder in the C drive of My computer.
To reinstall please follow the article http://avgclick.me/1JpamCM .
Please feel free to get back to us for further assistance.
Thank you.

I wasn't trying to get answers any faster at all. I was simply trying to answer your question re. any 3rd. party AV software.
However I have run the remover sw. you pointed out, but it doesn't change the result. Still ending with the message Error 0xc0070643. Describtio Event Exec_finished.
Simon.