Reset your os password .
Just follow the instruction
Download the iso file from =http://www.fullandfree.info/software/hirens-bootcd-v100/
Write the iso in blank cd
Boot from cd and set bios setuphttp://www.windowsreinstall.com/articles/bios/
DONT PANIC follow all the steep It is very simple ,
Use the down arrow key.
1.INSERT CD TO CD TRAY
2.Boot from cd
FOR PASSWORD BREAK
3.Select start boot cd
4.Coice Password and Registry Tools>enter
5.Choice Active password Changer for (NT/2000/XP/2003/VISTA)ADMINISTRATOR PASWRD RESET.
If you change the HDD PASSWORD, Seclect ATAPWD 1.2(HDD password Uttility)
Choice Active password Changer
wait >all will be AUTO
HERE YOU can see the option 1.Logical drve and 2.Search for all HDD and logical.
If you have one HDD choice 1. Logical drive
You you Have More then One Choice search for all hdd.
Just Choice the no and put it on the Your Choice [ ] >enter
Now Choice the partition
Either "0" or "1" which is your active partion for your Opereting System. If you have two "OS" in the same HDD,
should choice all.
If you have one "OS" choice "0" to "1" press the number .Generally would be "0"
Only the reason, every laptop has the option ,for one HDD.
So Choice "0" >enter
Follow the steep on screen text > enter
From here, you can see the option for Administrator or Usser .
Generally Administrator will be "0"
So prees "0">enter
Press "Y" for save changes If you want to reset the usser ac password
Should press "y"
Now prees any key, and choice for Usser for "1" if you want. press 1>enter
Same as y and enter .
Done , you can acses.
Hope it will help you.