Step 1: Try possible /favorite passwords to log to the account
Step 2: Unlock Secret Admin account
The secret Windows admin account is created when you install OS on your computer. Usually it is hidden on the logon window. To recover it follow the steps provided in the links below.
Unlock Secret Windows Admin account
Step 3: Bypass Vista computer admin password using Emergency Repair Disk
Using ER disk we can bypass the Windows log on screen. To know more about that click on the link below.
Bypass Vista computer admin password using ER Disk
Step 4: Unlock or reset Windows Password using third party tools
This is the last resort when fail the all three methods listed. The main issue with this method is we need to download and run softwares which we don't know whether it is adware infected or not. Here I am going to list the tools which can be used to reset or recover the Windows Admin password.
1. Reset Windows Password using PC login
To know more about this tool please click on the link below.
How to reset Windows Admin Password using PC login
2. Reset Admin password using Offline NT Password & Registry Editor
It is a freeware based on Linux which can be used to reset the Windows Admin password. To know more and download the tool click on the link below.
3. Recover Windows Password using "recoveranypassword"
This is a paid tool available to recover the Windows password. To know more about this tool click on the link below.
I will update the list of tools with the latest releases.