You just have to be patient George. In case you're unaware, most of us on here are Linux enthusiasts, happy to share our knowledge and help someone out. Sometimes the people that are on don't know the answer and sometimes the people who know the answer aren't on. I would have talked with you sooner but I was asleep. So you just have to wait sometimes for the right person to log on.
So I have a Dell gaming laptop that I dual boot with Windows 10. I don't know what the version number is because I never boot to Windows
. But one of the very nice things about Linux is that you can install and reinstall to your heart's content. Heck, Wizard loves doing it so much, he has 90 installations on, I believe, 2 computers. So I'm going to say you have to reinstall. Before doing it you need to change your UEFI settings. First disable Secure Boot. Windows should still boot with this change but Linux doesn't need it, except for a few distros. Second, make sure that UEFI (boot settings or something like that) is set to the original setting. For my laptop it's either UEFI or Legacy. Ubuntu will boot just fine using UEFI. Windows will only boot if it's UEFI, so it's best to make sure both are installed using the same setting. You can't boot to one if it was installed using the other setting. Because of this you most likely won't be able to get your Ubuntu install to work without reinstalling.
During the installation process there's a step where it asks you where you want to install Ubuntu. This page is where you told it to go into the freespace. Be sure to change this to Manual, so you don't lose your Windows installation and recovery files. On this same page but a little lower down it has a line for Boot Loader location. This needs to be /dev/SDA for a single hard drive computer to dual boot.
BTW, I just created another thread on how to retain your settings and apps for all your installs and reinstalls. You may want to give it a look before you start your reinstall. https://www.linux.org/threads/how-t...distro-like-the-old-complete-with-apps.23139/