Second, you can download Windows 7 Password reset disk. Few months ago I used this one to recover my lost password:

Remove/crack windows 7  password you can use Windows Login Recovery, it can reset/remove Windows 7/vista/xp/2008/2003/2000 password instantly.

For Windows 7 password Recovery, there is a useful tool,[Download Windows 7 Password Recovery Tool], this software is cheap as if it is free!

Process is easy and fast and everyone can do it. It took me less than 5 minutes to get back to my computer, and no harm done. All my files were safe and I could resume normally with my work. You just need to answer 4,5 question in the process, like for which account you want to bypass windows 7 password...or which windows version you use. Have in mind this tool supports all Windows versions XP, Vista, 7. So, back to the questions. Do not worry about them. In the package a step by step guide is included which explains each question and you should be back to your PC in notime.