1. Did You Create a Vista Password Reset Disk

If you did create the Windows Vista password reset disk before forgot Windows Vista password, the method will be helpful. While, there are exactly little Vista laptop users who remember to prepare such a useful disk. You could easily create a Windows Vista password reset disk through Vista's control panel with a USB flash drive.
a. Start -> Control Panel -> User Accounts and Family Safely -> User Accounts.
b. Create a password reset disk on the left pane.
c. Click "Next", follow the forgotten password Wizard to create a Vista password reset disk.
On the logon interface with incorrect password, click the reset password link and there will be wizard. Now you can reset password for Vista with the created Flash drive disk on your PC within seconds.

2. Reset Forgotten Windows Vista Password from Safe Mode

a. When Vista laptop starts, please press "F8" key.
b. At the "Advanced Boot Options" windows, choose "Safe Mode with Command Prompt" and then login Safe Mode with available administrator account.
c. Input "net user", press "Enter" key and then all the accounts will be listed.
d. Input "net user Luca 012" (Luca is the forgotten account name and the 012 is Luca's related account password.), press "Enter" key to finish unlock Vista laptop password.
E. Input "shutdown -r" and press "Enter" to restart Vista computer, then we can login "Luca" account again.

3. Free Vista Password Recovery Software Tool

There are two popular Windows Vista password recovery freeware: Ophcrack and Offline NT Password & Registry Editor. The former which is based on rainbow tables will spend you much precious time to download but just can reset passwords less than 14 characters. The latter supports Windows NT/2000/XP, but not AD password recovery.

4. Professional Windows Vista Password Reset Software

There are many commercial Vista password reset tool, such as Windows Password Recovery Corporation. With it, you can easily login your Vista computer by burning a bootable CD/DVD or USB flash drive.
Why would the tool be so popular for PC users? That's because it does not require special PC technique or skills. Users can quickly get out problem within minutes!
Let's take Windows Password Recovery Corporation for example. As one of the best and popular Windows password recovery tool, we just need 3 steps to reset Windows Vista password.
Step1. Download Windows Password Recovery Corporation and burn a CD/DVD/USB Flash Drive on an accessible Vista computer.
Step2. Set your target computer to boot from burned CD/DVD/USB Flash Drive.
Step3. Reset forgotten Windows Vista password to Re123456 with the burned CD/DVD/USB Flash Drive.

Vista password reset with the above methods of forgotten Windows Vista password reset is easy now for anyone who forgot Vista password!

souce: http://windowspasswordrecovery.net/article/how-to-reset-password-on-windows-vista.html