Unable to use fingerprint reader to log on to Windows 7 in Dell Latitude E6420

This is the Dell ControlVault Windows Biometric Framework (WBF) Driver supporting Integrated Built-in Fingerprint Reader devices in systems with Windows 7 Operating Systems.
Important Information
IMPORTANT: The stand-alone Dell ControlVault Windows Biometric Framework Driver cannot coexist with other Biometric Authentication Software Applications or Drivers. Therefore it is important to uninstall any Biometric Authentication Software if previously installed.
(Start->Control Panel->Programs and Features)
Check and un-install the following components if present:
• Dell ControlPoint Security Manager
• Dell Data Protection | Access | Drivers
• Dell Data Protection | Access | Middleware
• Dell Data Protection | Access
• Any non-Dell Windows Biometric Framework Drivers or Applications
Dell ControlVault WBF components installation steps:
NOTE: Installation order is very important – use the following procedure, including reboots or the software will not function properly:
1. Download the following software packages and install in the order listed below:
a. Dell Data Protection | Access | Drivers Package
i. Double click package filename and select Custom installation Setup Type
ii. Uncheck the Dell ControlVault box
iii. Continue to follow the wizard installation instructions until completed
b. Dell ControlVault Windows Biometric Framework Driver package
i. Double click package filename and follow the wizard installation instructions
ii. Go to the C:\dell\drivers\RXXXXXX\USH folder and double click on CVHCI.msi and follow the wizard installation instructions until completed
iii. Reboot
c. Dell ControlVault Firmware
i. Double click package filename and follow the wizard installation instructions
ii. Go to C:\dell\drivers\RXXXXXX\firmware folder and double click on ushupgrade.exe and follow the wizard installation instructions
iii. In the pop up dialog window press the Start button
iv. When installation is completed press the Restart button. The system will reboot.
2. Enable ControlVault Windows Biometric Framework feature (Start->All Programs->Broadcom->USH Tools and click on ControlVault WBF
a. In pop up dialog window select Enable and the press the Set button.
b. Press the Exit button
c. Allow time for any windows updates to complete
Errata Data:
Windows Update may sometimes conflict with the installation of the Dell ControlVault Windows Biometric Framework driver installation and not allow proper installation. To identify if this occurs, go to Device Manager (Start->My Computer->Properties->Device Manager) and click on “Biometric Devices” and notice if there is a yellow exclamation mark (yellow bang) on the “ControlVault w/Fingerprint swipe sensor”. If this is so, right click on “ControlVault w/Fingerprint swipe sensor” and select Update Driver and choose “Browse my computer for driver software. Wait until Driver has been detected and installed (~30 secs).
Steps to run Fingerprint Management Application (FMA) User Interface:
1. Go to Windows Start->Control Panel->Hardware and Sound->Biometric Devices
2. Click on Change biometric settings
a. Select Biometrics on settings
b. Choose Allow users to log on to Windows and domain
c. Press Save Changes button
3. Click on Use your fingerprint with Windows
4. Follow wizard installation instructions to enroll your fingerprints(s)
5. Begin using fingerprint authentication feature by selecting the Fingerprint emblem at Logon. The first time it will ask you to enter your password to verify authentication.  Thereafter you can use just the fingerprint to logon.  A slow finger swipe is recommended. It may take a few seconds to fingerprint authenticate.