New
#141
What backup software are you using?
It may not be the reason but I just share the experience. Before the upgrade I am using marcium reflect to backup image and it was installed in Win 7. When I tried to upgrade to Win 10 it would never be upgraded and always prompted error. After I uninstall the backup software then the upgrade was successful.
So I think there is some conflict between Win 10 and the backup software.
Now, I do not install marcium reflect in Win10 but have created a WinPE CD and backup/restore during boot up time.