Bests & Worsts Reviews from Amazon

I am IT professional with five decades of experience (designed computers, wrote 2 OS's, 2 programming languages) and Amazon's download mechanism is BADLY BROKEN, and they appear to refuse to acknowledge it. I spent 3 hours on this, finally removing ALL anti-virus/firewall protection software so there was nothing that would interfere with the download. My WiFI connection was clean and secure, rebooted windows - which was a brand new copy of Win10 on a brand new Dell Laptop. No difference - attempting to download the Amazon Installer ALWAYS FAILED. It does not even appear that you can get a refund, when you figure out you got screwed. So, I just went to Microsoft's store, where the download and installation proceeded quickly without nary a hiccough. Hopefully Amazon will get off its duff and hire some competent programmer to fix this mess. In the meantime I am going to see if my credit card company can reverse the payment for this disgusting junk.