Clean the Registry for the Customized Profile

• Log in as the local Administrator and run regedit
• Select to highlight it: “HKEY_USERS”
• Select Load Hive from the File menu
• Browse to your profile/template user directory and select “ntuser.dat”
• Enter “DU” for the key name (perhaps anything for the Key Name works here …)
• Navigate to Navigate to: HKEY_USERS\DU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
• Delete everything EXCEPT (Default) and “!Do not use this registry key”
• Use the “Find” function to find anything else that refers to c:\users\username (where username is the specific name of your profile/template user). Now comes the tricky part, for each of these you’ll need to decide if they shuold remain of if they should be changed. If changed, you should probably replace the c:\users\username part with the environment variable: %USERPROFILE%
• REALLY IMPORTANT —- UNLOAD the user hive from the File menu!

For more details and pictures see:
https://cwiki.apache.org/confluence/display/VCL/How+to+Configure+the+Windows+Default+User+Profile
(This is somewhat old and for windows 10 the only recommended way to copy a profile is with the sysprep “copyprofile” setting!)