Ok - I've got two machines running W10 Home v1607 and have copied the ntuser.dat from the good one to the bad one.

This seems to be working fine - both standard and admin accounts seem to work...

Windows 10 / Home / Lenovo i5 PC. Windows 10 was pre-installed (so not an upgrade from a previous version).

When I create a new standard local user and try and log in to it Windows creates the...