To save a ton of time and energy copying a profile, or recreating a profile, follow the 5 easy steps.
Join to Domain, restart, and then login as local user.
Grant full permission on c:\users\local_user to domain user and make sure to check “Replace all child object permissions with inheritable permissions from this object”.
While still logged in as local user, open regedit and grant full control on the HKEY_CURRENT_USER key to domain user. Make sure to check “Replace all child object permissions with inheritable permissions from this object”.
Expand HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList. Each key here is associated with a user account on this computer. Go through each key and look at the “ProfileImagePath” string. Find the string for the local user and copy it. Paste it into the same string for the domain user. Now delete the entire key for the local user under the ProfileList key.
Restart and login as the domain user.
It’s as simple as that. If you want more details, here is the full guide: