We always recommend to use the program http://pogostick.net/~pnh/ntpasswd/ to reset it.
Kees
Before the updates installed I changed the computer name and it restarted immediately to install the updates. Arrrggghh!!! Now my password doesn't match my username. Password reset wizard comes up but I don't have a reset password disk. What can I do?
I can't log on.

Chowhound
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