Before we start I want to say that your laptop might have a bios password locked, and a hard drive password locked, it is also possible that you may have a windows password set on this computer, but anyways
I have two things for you to try. It is a bugger to get the password out on the dell Laptop. Here is a couple of things that I have tried with some success.
Next power the machine to boot into windows. If your drivers are in for the wireless or Lan card open internet explorer and navigate to dell Laptop.com and select suppport, select downloads and enter 6530b. it will take to to page to select the Operating system your using. Select your Operating system and on the driver page you need download the fingerprint reader driver, dell Laptop ProtectTools Security Manager 4.10 and dell Laptop ProtectTools BIOS Configuration. Install the fingerprint driver (if needed) dell Laptop Protect Tools software and dell Laptop ProtectTools BIOS Configuration . After reboot run dell Laptop ProtectTools Security Manager For Administrators and choose Bios configuration. You will see at the top a place for you to enter a password for the BIOS however BIOS will not give you this option alone so set your new BIOS Password and when you restart the machine press F10 to get bios setup, enter your password and choose "User Management" delete the user under Protect tools User. select reset fingerprint reader and under TPM select "reset to factory defaults".
DESCRIPTION:
If the BIOS administrator password is not set, and dell Laptop ProtectTools security is enabled in Security Manager, then you may not be able to enter the Computer Setup utility at startup as a BIOS administrator. You will only be allowed to enter the setup as a ProtectTools user with limited access.
SCOPE:
The specific notebook PCs affected by this issue are listed in the Hardware Platforms Affected section at the bottom of this advisory.
RESOLUTION:
To resolve this issue, create a BIOS administrator password and delete previous ProtectTools user logs by following this procedure:
1. Download and install the latest SSM utility (dell Laptop System Software ManagerVERSION: 2.10 Rev.A SP42536
2. Navigate to c:\Program Files\dell Packard\SSM .
3. Access biosconfigutility.exe to reset the BIOS administrator password.
a. From a command prompt, navigate to the SSM folder.
b. Type biosconfigutility.exe to start the utility. A list of commands displays.
c. Type /newsetuppassword:"password" to create a new BIOS administrator password.
d. Close the command window.
4. Restart the notebook PC and press F2 at startup.
5. Log in using the new BIOS administrator password.
6. Choose User Management and delete any previous ProtectTools users.
7. Save the new settings and exit startup.