Windows 7 forggoten Password

 There is a way to get into your operating system without knowing the password. You can create a new password for your account. All you need is another operating system from which you can get access to your hard drive. 

This can be, for example, a Linux live CD environment (Linux on CD which does not require installation), or even DVD installation disc of Windows. The following steps are an example demonstrating how to get back your password with installation CD of Windows 7.
  First, boot your PC from the CD. When you see the install window, press the key combination [Shift F10]. Console window should now appear. Navigate to the \ Windows \ System32. Before that, however, you must determine by trial and error method, which partition Windows is installed on. Enter for example E: and confirm with [Enter] to jump to the E: drive. Type "Dir" command to summon the content of a directory.
  Lets say partition E: is the partition which you're looking for. Now type the following two lines:

Rename C: \ Windows \ System32 \ Utilman.exe Utilman.bak

Copy C: \ Windows \ system32 \ cmd.exe E: \ Windows \ System32 \ Utilman.exe

  Each line confirm with [Enter]. Then reboot the system, trying to run Windows. When you see the login screen, press [Windows U] to run the program Utilman.exe. Simply be right now Accessibility window, but after making these changes will be displayed instead of the console window. Now just enter the command:

net user name password

Replace the variable "name" with your user name under which you log into the system, while the variable password is the new password you choose. Now you can normally log in to your account in Windows.