i forget the password which i gave to my administrator account.so now i'm unable to login to that account wat i have to do to login-in...?

If you're a Windows XP user, just boot in from safe mode and log in from Administrator (which will be available with your original account) and create another admin account without password so you can work on your computer without going to safe mode. However, this won't work on Vista or later...

For password recovery, you can google search them and there should be one software that can recover it for you or search it HERE or HERE. Mostly trial software would work so download them, install it, attempt recovery, once done, delete the software.

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