f you want a fully foolproof solution, use the reg.exe tool to load the "default user" hive in another key :

REG LOAD HKU\Default_User "C:\Documents and Settings\Default User\ntuser.dat"

REG IMPORT mytweaks.reg

REG UNLOAD HKU\Default_User

In this case, you'll use "HKU\Default_User" in mytweaks.reg instead of HKCU.

Okay, when running the IMPORT, I get an error about Invalid file format. It's a REG file, and works via double clicking. What am I doing wrong?

Unlocker is for access denied and file is in use with another process!

Okay, when running the IMPORT, I get an error about Invalid file format. It's a REG file, and works via double clicking. What am I doing wrong?

Do you mean that you get an error with the following command?:

REG IMPORT mytweaks.reg

What does it says when you do?:

REGEDIT mytweaks.reg

(You can add an optional /S switch to import it silently)

If this command fails as well, It may be you file format.

The file has to start with the following line:

Windows Registry Editor Version 5.00

???followed by a blank one???

If you file has this header but you still get the error, attach it so we can have a look.

REGEDIT mytweaks.reg

(You can add an optional /S switch to import it silently)

Not regedit, but REG IMPORT. The majority of the file is posted in my first post.

In this case, you'll use "HKU\Default_User" in mytweaks.reg instead of HKCU.

Nevermind, this is the issue. I'll run it again tomorrow.