What if you need to edit some user’s registry and it is not listed in HKEY_USERS? For example we have like 400 profiles on one of our servers and regedit shows only around 20 under HKEY_USERS. I’ve found solution on one of forums:
To modify each users entries:
1. Open regedit
2. Click on HKEY_USERS keyname
3. File | Load Hive
4. Select one of the Users ntuser.dat file
5. Give it a unique name for adding to HKEY_USERS
6. Open HKEY_USERS\[UNIQUE NAME]
7. Make modifications
8. Click on HKEY_USERS\[UNIQUE_NAME] keyname
9. File | Unload Hive
10. Do next user
Very awkward user interface, but it works.