Are you an administrator on the Windows operating system with multiple user accounts? Have you forgotten the password to one of those accounts and you are locked out? Then, provided you are the administrator who is locked, then how would you reset Windows password on Windows 7 /XP/Vista?
Well, firstly, you can reset the password from the command line.
Step 1: Just go to your start menu then choose "run" (or press your Windows key and then press R). Then in the box that pops up, type cmd and press enter.
Step 2: In the black box that comes up, type net user then enter. This will give you a list of all your Windows accounts on that computer.
Step 3: To change the password for one of these accounts is very simple. Say the Windows account name is asked and you want to change the password to my password then you just need to type the following :
net user asks mypassword
Step 4: After pressing enter, you should then get a message saying “the command completed successfully”. That means the password has now been changed and you can now log into that account.
Note: With this method, you must need to logon with administrative privileges.
Secondly, if you the only user on the laptop and there is no password reset disk in hand, then how to do with Windows password recovery?
If you have more than one available account with administrative previlege, you can easily reset the password from Control Panel.
Step 1: Log in to a separate administrator account, if you have more than one set up.
Step 2: Click "Start" in the lower left-hand corner of the screen and navigate through the menu to the Control Panel.
Step 3: Open the User Accounts control panel.
Step 4: Select the user account to which you are unable to log in. Select "Change Password" from the menu and enter a new password for the account. Then click "Okay".
Thirdly, you can reset W indows password by a bootable CD/DVD/USB flash drive.
When you encounter the trouble to reset Windows password, you need to prepare a bootable CD/DVD/USB and download a third party software if you failed to reset the password without a password reset disk or another available admin account and password.
Windows Password Unlocker is such software that you can reset forgotten Windows password for Windows 7/XP/Vista by a burned CD/DVD/USB. It is professionally designed to reset lost password with less time-consuming and 100% recovery guaranteed. Also it can reset Windows domain password for Windows Server 2008/2003/2000.

According to my experience, there are some tips I have sumarised which you can take as reference.
Tip 1: Take a Popular Windows password recovery tool
It is better to take a popular tool for your forgotten windows password recovery. If you search with "reset Windows password" in the website, you will find so many products in front of your eys. So you should pay attention to their comprehensive ranking and the fame popularity in software industry. Furthermore, the Windows users’ value for the tools also take am important role.
Tip 2: Support all popular OS
Before you are going to download the target application to reset Windows password, you’d better fix out whether this third party is suitable for every OS. Some kinds of support to Windows, and some are fit for Linux or others. Also some is not good enough to reset Windows 7 password or Windows domain password. So go to its official site to learn more.
Tip 3: Easy to use
Perhaps the tool you have selected is well-recommanded and has high appreciation with popularity of the parent company, but please make sure if this toolkit is easy-to-use and has friendly interface for you even if you are not a well-skilled tyro. As I know, there are some freeware more complicated for novice like Ophcrack, which is one of the best freeware in the market used with LM hashes through rainbow tables. Thus, download the trial version and have a try if there is any trouble or problem with operation process.
Of course, many other reasons and tips when select a good and valuable Windows password recovery tool, such as recovery rate and tech support. As this, Windows Password Unlocker, developed by Password Unlocker Studio, is efficient and reliable to reset forgotten Windows password on Windows 7/xp/vista/2000 and Windows Server 2003(R2)/ 2008(R2) by a bootable CD/DVD/USB.
Warning: You cannot take Windows Password Unlocker in use with the trial version can list all the user names of Windows, but cannot remove their passwords.