Photoshop Elements 2019 will not install

Hello, I am trying to re-install Photoshop Elements and Premiere Elements 2019 (which I paid for after upgrading from 2018) onto a different drive on my computer. It's the same Windows computer that I had Elements on before. There is no difference in it whatsoever. When I click to launch the install I keep getting an error message saying that my browser or operating system is no longer supported and that I might have to install the latest updates to my operating system. My OS is up to date. I even changed my default browser to MS Edge (which I detest) in order to make this happen. I continue to get the same message. I'm beyond frustrated that I can't continue to use a product that I paid for. I don't use it very much and it has done just fine for me. I certainly don't need to pay for the new version when this one is good enough and was working fine before. Please help! Thank you!