Load the registry hive of another user To edit another user’s registry, one must first load their registry which is stored in the User directory file NTUSER.DAT C:\Users\<username>\ntuser.dat.

However, if you'd like to see it out of curiosity, here's how to find it: Go to File Explorer and browse to C:\Users\*YourUserName* If you don't see NTUSER.DAT yet, it's okay. Microsoft has hidden it ...

*.dat files are just a generic label for data files, they arent actually a standard type, it can have ANYTHING in it, that being said theres almost definately a dat file editor for age of kings ...