1. boot into safe mode (press F8 before windows starts),
2. log onto the account named "administrator" NOT your normal account
3. go into control panel and remove password from user account
settings.
I cant remember how many times i have forgot my password and had to do
this. that or reinstall windows but i don't think anyone wants that
joy.
or
you can delete your password by using an bootable floppy
you boot your system by bootable floppy and it will go to dos prompt
just u have to do is go to
c:\windows\system32\config\del SAM*.
As it delete u can boot ur system