After a disk crash I attempted to install my own copy of Win10-Pro-64 on a new hard disk. The installation seemed to go well until the computer rebooted (as is normal during installation) and went into the last stages of getting everything ready, at which point the the little animated circle of dots on the Asus spash screen stopped moving and all disk activity stopped. I tried this install several times but it always hung in the same place.
I then tried an installation of Win8.1-Pro-64 and it seems to have worked properly. I don't really understand this because the computer originally came with Windows 8.1-Home-64 and the various automatic upgrades all the way to Windows 10 worked perfectly.
Any ideas? Thanks!