Other Devices/Unknown Devices When Installing Windows 8 on HP Probook 6550b

I found three unknown devices when I installed Windows 8 on a HP Probook 6550b. The three unknown devices are actually,

• JMicron Media Card Reader Drive
     Hardware Ids
       PCI\VEN_197B&DEV_2392&SUBSYS_1619103C&REV_30
       PCI\VEN_197B&DEV_2392&SUBSYS_1619103C
       PCI\VEN_197B&DEV_2392&CC_088000
       PCI\VEN_197B&DEV_2392&CC_0880
     Hardware Ids
       USB\VID_138A&PID_003C&REV_0086
       USB\VID_138A&PID_003C
  
• HP 3D DriveGuard
     Hardware Ids
       ACPI\VEN_HPQ&DEV_0004
       ACPI\HPQ0004
       *HPQ0004
  
• Validity Fingerprint Sensor (VFS471)
      Hardware Ids
        USB\VID_138A&PID_003C&REV_0086
        USB\VID_138A&PID_003C)
  

The problem was resolved by downloading and installing three drivers, respectively.

• JMicron Media Card Reader Drive
  
  • 32-bit Windows 8 Driver
  • 64-bit Windows 8 Driver
• HP 3D DriveGuard
  
  • 32-bit Windows 8 Driver
  • 64-bit Windows 8 Driver
• Validity Fingerprint Sensor (VFS471)
  
  • 32-bit Windows 7 Driver
  • 64-bit Windows 7 Driver

Note that at the time I was installing Windows 8 on the laptop, Windows 8 driver for Validity Fingerprint Sensor was not available on HP's website. I tried the Windows 7 driver and it worked just fine.

After the drivers were installed, you would find the devices listed as follows in Windows Device Manager,

• JMicro Media Card Reader Driver as "Memory technology devices\JMicron PCIe SD Host Controller" and "Memory technology devices\JMicron PCIe SD/MMC Host Controller"
• HP 3D DriveGuard as "System devices\HP Mobile Data Protection Sensor"
• Validity Finterprint Sensor as "Biometric devices\Validity Sensor"

For convenience you may download the drivers for different versions of Windows below:

• HP Probook 6560b Drivers for Windows.