Losing an Microsoft CD key can be retrieved quickly using free tools that digs into your registry files but if you have lost Windows Vista Password or you’re unable to unlock admin access to your Vista system then here are some useful guidelines and tools to help you out (of course, free tools). Make sure you perform these actions carefully, some of the tools will not recover windows vista password but it will help you in resetting a new password on your Windows Vista computer.
Microsoft has there own set of PStools that are used specially to reset the admin login password on Vista. Once downloaded, extracted the PStools – You will be able to reset Windows Vista password or change admin password in bulk. Useful for local systems as well as remote multiple systems. More information on PStools
NTPass is an offline tool that will help you to unlock, recover vista password by detecting the admin accounts situated with the computer. It also includes utility such as registry editor that will help in identifying the password, unlocking them and resetting a new password for admin access. This also works for Windows XP!
So far, the old methods of using ophcrack to unlock password doesn’t seem to work out. If you make use of the above tools carefully and follow the instructions, you will be able to recover your vista password as well as enjoy the admin status without the need of formatting or reactivating the system! And if you’ve any method that helped your in recovering the password then do let us know through the comments.