After reading the whole thread before doing the install, here is how I proceeded after download:
1. Disabled Windows Defender
2. Disabled Windows Firewall
3. Mounted appropriate iso
4. run the .exe
5. choose Microsoft office 2019, select language(s)
6. DESLECT Skype for Business and OneDrive for Business
7. Once install is completed, an MS Office window tells you it's installed. Close that.
8. Go to utilities tab and
- click Office RETAIL >= VL button
- then click Activate Office button
No error messages and all programs installed and open correctly.