◘Open command prompt by typing with administrative privileges .( Type CMD in start, right click on it and select Run as Administrative )
◘In the CMD window type the following command and hit Enter
net user Account Name Your New Password
◘In this command replace Account Name by the account name (Account Name is case sensitive) whose password you want to change and replace Your New Password by the password that you want to set.
◘Now if everything goes alright you will see “The command completed successfully” on your screen, now type exit command and hit Enter
◘This will reset your current windows password.