The debug environment output looks OK to me.

> I tried it on another VM with a newer Windows10 OS and it works.

Good to hear! The issue does look to be specific to this VM.

> can tell me how to stop it from calling: getLoadAndScaleToPercent()
..or remove XPack.

There's only one distribution of Windows Installer, which always includes X-Pack. If you're looking to install without X-Pack on Windows, you should install the OSS distribution of the zip archive.