Sounds good. Hope all goes well on your next attempt. I have done a number of upgrades for people. I fined a fresh install of your exsiting Os. Works the best with win 10 upgrade.

Why are you not able to run a system restore point before your problem? As for that matter a refresh. Will safe mode not let you? Or does safe mode not come up?

If you are able to get in win 10. Thur safe mode Try running a refesh on win 10. It will keep your personal files. You may need to reinstall other software programs that you have.