I've tried upgrading my Windows 7 Ultimate 32 bit 25 times, and it's failed 25 times. To save time retyping everything I've done, I'm going to provide this link to my post on MS Ask the community. I even added a bit about how Media Creation Tool also failed to install Windows 10.
It's getting to the point I may have to find a local computer guru and pay them to try and determine why Windows 10 won't install even after all the system checks say my system is Windows 10 compatible. And it's getting closer and closer to the time when this upgrade will no longer be free.