Two of the methods I describe on this site are included (See tip #9 & tip #50) and a third that requires use of a Linux boot disc.
See the original post at: Three ways to reset a Windows Vista admin password
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Three ways to reset a Windows Vista admin password

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Comments
happykaka
Oct 9, 2009 at 10:08 pm
Compare to many password recovery solutions. Following solution is the best and the easiest one.
1.Download Windows Password Unlocker from Password Unlocker Official site http://sn.im/wpu .
2.Decompress the Windows password unlocker and note that there is an .ISO image file. Burn the image file onto an blank CD with the burner freely supported by Password Unlocker.
3.Insert the newly created CD into the locked computer and re-boot it from the CD drive.
4.After launched the CD, a window pop up with all your account names(if you have several accounts); select one of the accounts that you have forgotten its password to reset it. Just one press, you have removed the password.
Chris
Jan 29, 2010 at 4:32 am
If you don’t want to reformat your system, I think you have to make a rest disk or use some windows password recovery tool to do all the job for you. Burn a boot CD with the program, and insert it into the problem computer and your password will be reset to “Blank”.
http://www.windowsloginrecovery.com
fiona
Feb 22, 2010 at 9:07 pm
Naturally, what a great site and informative postsme few extra thinks about this, I’m really fan of this article.
By the way, I would like to share another article about how to remove windows password, and the link is http://wiki.e107.org/?title=Forgot_Head_Admin_Password#How_to_Reset.2FBypass.2FRemove_Windows_Admin_Password
dindia
Feb 28, 2010 at 8:41 pm
Try to use a windows password recovery tool to bypass windows vista admin password http://www.anypasswordrecovery.com/ ,it need not to reinstall or reformat the windows OS, with no data lose,by using “Any Windows Password Recovery 3.0 “,its easier.
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