What would keep me from going back to windows 7 from windows 10 Home? I try to load it but it fails and windows 10 Home comes back up? Does this have anything to do with one drive? Should I re-create the partition and wipe it to then try to load windows 7 pro?
If you've been upgraded to Windows 10 for more than 30 days you can't roll-back as the "Windows.old" folder (Which houses your old version files) is cleared. To roll back after that point, you would need to perform a clean installation of Windows 7. If your attempting a clean installation already and it's failing, then there could be another underlying problem.
This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.