Python on Windows 10 Failed to install - Error 0x800704c7

I'm trying to install Python from Python.org and the installation is failing. I have tried it more than once from the administrator and run as administrator from the user account that does not have admin privileges. I see in the log file that I'm getting an error: Error 0x800704c7: Failed to launch elevated child process. At this point I've de-installed using the installation file.

How can I get help on finding and fixing what has gone wrong.

Thank you in advance.