I recommend a program called Windows Password Reset 9.0 Last week, I lost my windows password, and I found it in http://www.reset-windows-password.com Then downloaded it and used it to remove the lost windows 7 password within only few minutes.
Windows Password Seeker is a good windows password recovery tool, when you forgot windows password, you can reset your password with this useful tool. http://www.passwordseeker.com
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