Hello
let's review your installation steps :
1) i think you reviewed the prerequisite good, for double checking , uncompress and run this cmd script https://docops.ca.com/ca-network-flow-analysis/9-3-8/en/files/444498284/444498285/3/1520591124646/NFA-check.zip and check if something is missing ( you can run then the NFA_fix script that will complete the missing.
2) in case you install single box, you should install the harvester first , then the console ,, usually starting by installing console then harvester might cause some issues in the Mysql or the services.
3) in case you try to uninstall and reinstall the NFA again, DON'T forget for remove the (hidden folder) from the program files (x86) called Zero G , if you forget, usually you will find most of CA services failing to start.
best regards