Itunes Installation issues

I had ITunes on system before hard drive crash, got new hard drive and started installing software, and since IPhone uses ITunes and I had ITunes 12.6 on old hard drive, I installed it, but when started, the Apple Mobile Support was from "older" install.

My system is Win 10, and I uninstalled, cleaned it, restarted, and cleaned it, and restarted and then reinstalled, SAME problem. I researched reliable Apple Communities and Windows forums for any correction that can be made to install. Bottom line, NOTHING worked.

I've had ITunes for years on Win 98, Win 7, and now Win 10. If Apple and Microsoft are professional and growing, then WHY don't they play well together?

After over 15 clean installs, cleaning of registry, following others who had similar problems, I'm at my wits end. I'm not a novice, and I always find solutions UNTIL now.

Thanks for listening.

John