Thank you for writing to us!
If you are talking about the operating system password then you can do a factory rest or reinstall the operating system ( note that there will be data loss)
In case of the BIOS password then kindly write to us @DellcaresPro on twitter or Delltechcenter on facebook.
Kindly private message the service tag and email address .
Social Media Support
Personally, I suggest to make a password reset disk to recover the password. And there is no data loss with this method. Here is a quite tutorial to reset dell laptop password in several clicks. However, if you prefer command prompt, then you can have a tool at Ophcrack.