Installation error 0xe001050b on windows vista

Hi F C,
We regret to hear about the inconvenience caused. Please uninstall the Avast program installed in your computer. Please use the AVG Clear tool and AVG Remover tool to remove all the AVG traces. Please try a fresh installation.
1 Use the link https://share.avg.com/steam/PSP/AVG2017/AVG_Clear.exe to run the AVG Clear tool.
2 Open the AVG Clear tool, click Yes in the User Account control dialog.
3 Click No in the Windows safe mode dialog.
4 Select the installed version of AVG, click Uninstall, then click Restart computer. (1/2)

I am trying to install free (basic) AVG anti-virus protection on windows vista home basic service pack 2, but above error message (at 73% installation) keeps repeating.
Using: pentium (R) dual-core CPU E5300; 3GB RAM; 32-bit; with 153 GB free
Because I was unsuccessful I tried downloading AVAST, but different error message.
I made multiple attempts yesterday, uninstalling and re-installing between avast and avg (and re-starting computer each time).  I think, at one point, the installation completed, but the icons were not highlighted in green (activated).
Before yesterday, I was using microsoft security essentials, but due to end of life support effective today, I am following internet recommendations.
I also changed browser to firefox ESR (as per internet recommendations)
Hi F C,
We regret to hear about the inconvenience caused. Please uninstall the Avast program installed in your computer. Please use the AVG Clear tool and AVG Remover tool to remove all the AVG traces. Please try a fresh installation.
1 Use the link https://share.avg.com/steam/PSP/AVG2017/AVG_Clear.exe to run the AVG Clear tool.
2 Open the AVG Clear tool, click Yes in the User Account control dialog.
3 Click No in the Windows safe mode dialog.
4 Select the installed version of AVG, click Uninstall, then click Restart computer. (1/2)
Please run the AVG Remover tool by using the below instructions.
1 Download the AVG remover tool please click on this link:
http://aa-download.avg.com/filedir/util/AVG_Remover.exe
2 Run the downloaded tool and follow the instructions displayed on your screen.
3 Your computer will be restarted automatically.
After reboot, Open C drive and look for folder "AVG Remover" and delete it manually, also delete "AVG" folder in "Program files (x86)" in C Drive.
Please click on the link to download the AVG Anti-Virus free : http://avgclick.me/InstallFree
Please, feel free to let us know if you require any further assistance. Thank you.